14 best zip line parts

Product description

Fusion Climb Z-Max Speed Stainless Steel Pulley Grip Red Trolley - This heavy duty, stainless steel sheaves, complete with dual stainless steel sealed ball-bearing is a choice for enthusiast for maximum speed and adrenaline rush. - It has steel side plates with strength, and handle bar with soft grip for efficient performance fun for all ages. - The Z-Max is stable and amazingly fast, complete with 4 generous attachment points for back up tethers. - High efficiency, 90 m/s. MBS: 45 KN - Minimum required cable Size 3/8". Fusion Climb Z-Max Military Tactical Edition Stainless Steel Zip Line Speed Trolley Pulley with Grip Bars Black 45kN- A heavy duty trolley with stainless steel sheaves, complete with dual stainless steel sealed ball-bearing is a choice for enthusiast for maximum speed and adrenaline rush- Equipped with steel side plates for durability and handle bars with soft rubber gripr for efficient performance fun for all ages- The Z-Max is stable and amazingly fast, complete with 4 generous attachment points for backup tethers- Split open design on bottom for easy setup on cable and closure is done by locking a tether on bottom anchor point- Cable size: 9-13mm, Unit Weight: 4. 27lbs, High efficiency: 90 m/s. MBS: 45 KN.

• Dual stainless steel sealed ball-bearing, long wear alloy sheaves, High efficiency: 90 m/s, steel side plates, and a soft-grip handle bar
• Strength: MBS: 45 KN
• Dimensions: 11. 4" x 6. 24" x 7. 98"
• Made for enthusiasts of maximum speed and adrenaline rushes
• Minimum Cable Size 3/8"

User questions & answers

Question:	Will it work with 3/8" cable
Answer:	I used 6m strand (recycled power company cable) which is probably about 3/8 " and works fine.
Question:	Can this pulley go on a preset cable and does it come assembled
Answer:	It does come assembled and can be placed on a preset cable. The bottom part pulls apart/open and you place it on the cable from above the cable. It can also be locked onto the cable so no one can take it off. We don't want anyone on the zipline when an adult isn't present so we take it off after my kids are done using it each day.
Question:	Will this pulley work on 5/8" cable
Answer:	I don't know. That's a pretty massive cable. I used 5/16 at 120' and it's pretty rugged. Check with the manufacturer.
Question:	will it work on a 3/16 cable
Answer:	I used 3/8 and it seemed small on this might get jammed with smaller cable

Product description

Extended Length: Outstanding 160 Feet Zip Line, long enought for your children or yourself to take an exciting ride, now spend endless hours on your backyard to enjoy this easy installation amazing toy!

• Cable tension kits for easier installation. Trolley (detachable) can be fitted at any part of the cable.
• Spring brake + adjustable safety belt & strap + seat with rope + non-slip handlebar for maximum security. Suitable for kids 8+, Max weight 250LBS, adult supervision is required.
• 160ft stainless steel cable + 6.5ft sling cable with tree protection tube. Offer faster ride and an increase in height.
• We Offer Help/Replacement/Refund: Any issue, please contact us via Amazon message or support email (on warranty card).
• Product Accessories: Zipline Trolley, SUS304 160 ft Main Cable with Soft Pipe & Spring Brake, 6.5 ft Sling Cable with Soft Pipe for Tree Protection, Ratchet with Strap, Wire Grip, Adjustable Safety Belt/Strap, Seat with Rope, 7 U-Clamps with Washer, 3 Carabiners, Turnbuckle and Wrench, Turnbuckle Safety Backup Cable, Storage Bag.

User questions & answers

Question:	Can I use 1/4 inch stainless steel aircraft cable with this trolley
Answer:	Mine has been in my backyard for over a year and I’ve had no rust at all.
Question:	Is it spring system? And the cable tensioning kit can make installation much easier, right
Answer:	I’m sorry I’m no help. This was a gift for my grandsons that are in N California. They won’t be installing it until later in the year, since they now have 5 feet of snow
Question:	Is the spring brake stainless steel
Answer:	Yes, will work. It would be a little bit shorter will be 50 feet !!:-)
Question:	What is the diameter of the cable
Answer:	Yes, just look for 150 ft.

• Compatibility Range - The zipline stopper is compatible with 3/16, 1/4, 5/16, 3/8 inch diameter zipline cable/wire and suitable for most zip lines which is over 60ft long.
• Braking Performance - This zipline spring brake can stop people whose weight up to 300lb on the slope 5° of the ground（drop rang of 5%).
• Applications - Mainly used as kids backyard zip line spring stop / brake kit system, it is the more convenient and efficient substitute for bungee brake, helping you and your little ones stay away from the trees to have a fun zipline sports.
• Better Elasticity - Material of the spring is piano wire, which is a high-carbon steel with better elastic performance than stainless steel, strengthing your braking system significantly.
• Universal Accessories - This zipline parts is compatible with rubber plugs of other zip line stoppers, please compare the dimensional parameters of the spring and the rubber plug.

Product features

Necessity of Spring Brake

The outdoor zipline needs a buffer before the end point to eliminate the kinetic energy, otherwise it will cause danger.

Usually, most of the zipline kits products provide bungee brake to get the buffer, to avoid people hitting the tree.

However, only using bungee brake not only increases the loss of bungee rope, but also is not safe enough. The spring brake can be used together with bungee brake to increase the safety of sport.

High Impact Resistance

Compared with ordinary carbon-steel and stainless steel, Piano Wire has better strength and toughness.

Can withstand greater impact kinetic energy without damage under the same length and specification.

Stable Performance

Compared with stainless steel, Piano Wire has stronger anti fatigue and anti creep ability, and can be used more frequently in a period of time without worrying about the weakening of spring performance.

Strong Elasticity

Compared with ordinary carbon steel wire and stainless steel wire compression spring, Piano Wire compression spring is more elastic.

Long service life

The metal surface blackened treatment to enhance the anti rust ability and make up for the common carbon steel spring easy to rust. The service life is more than half a year.

Durable Rubber Plug

The cable plug is made of natural rubber, very durable, providing powerful cushioning.

3/8 in Cable Compatible

Compatible with 3/16, 1/4, 5/16, 3/8 inch diameter zipline cable/wire and suitable for most zip lines which is over 60ft long.

Protective Gasket

Stainless steel gasket added between spring and plug, Avoiding the risk of the rubber plug being damaged by the spring.

Installation

1. Before installing the zip line system, the cable should be insterted into the spring. 2. Cross the cable from one end to another end. 3. Place the spring brake on the turnbuckle side and keep a safe distance from the end point.

Note

1.Piano wire is a reinforced kind of high-carbon steel, still need to be stored in a dry space.

2.You could apply anti-rust oil to the spring surface to strengthen the anti-rust effect, just take you several minutes.

3.Try to avoid leaving the spring in a bending or compression state for a long time, because doing so will cause the spring to deform and weaken its elastic performance.

4.In fact, stainless steel is only less likely to rust, but normally high-carbon steel's elastic property is much stronger than stainless steel.2

Product description

About Our Zipline Spring Brake System:

We have improved the manufacturing process of the spring, and the production cost is drastically reduced while ensuring the quality. 

Our Upgrade durable stainless steel spring has longer service life, which is more weather resistant than other bungee brake.

Our rubberized stoppers was One-time injection molding with no cracks and gaps. 

All of this ensures that more customers could buy a safe and durable zipline brake kit, allowing more children to play safely in the yard without having to worry about hitting trees.

Specifications:

Fits Cable for 3/16, 1/4, 5/16, 3/8 inches diameter, over 60 feets zipline cables.

Installation:

1. Before installing the zip line system, the cable should be insterted into the spring.

2. Cross the cable from one end to another end.

3. Place the spring brake on the turnbuckle side and keep a safe distance from the end point.

• 【Professional Zipline Brake】Suitable for zip lines less than 200ft, compatible with 3/16, 1/4, 5/16, 3/8 inches diameter zipline cable/wire. Our one piece zipline spring brake can protect adults whose weight is within 350lb on the safe slope 2°to 3° of the ground（drop rang 3%-5%). If the zipline wire lenght more than 200ft or the ridder weight more than 350lb, two, three or four springs can be added to your zip line for additional stopping power.
• 【Compression Zipline Spring】It is not the length of the spring, but the compression force of the spring that really determines whether to brake in time to ensure safety. Our 5.3" long high-strength compression stainless steel spring is a great addition to your backyard zipline. Our Upgrade durable stainless steel spring has longer service life, which is more weather resistant than other bungee brake.
• 【Superb Craftsmanship】Unlike the others, Our rubberized stoppers was One-time injection molding with no cracks and gaps. The spring and the rubberized stoppers are firmly bonded together that you don't have to worry about the damage caused by thermal expansion and contraction in spring, summer, autumn and winter.
• 【Easy to Install】Without seems useful but really useless zip line accessories like others (if you think seriously), Just feed the zipline cable through the rubber ends of the spring brake and you are ready for installation within 1-2 minutes without any tools.
• 【Great Value and Full warranty】We have improved the manufacturing process of the spring, the production cost is drastically reduced while ensuring the quality. It will safety for both kids and adults. If you're not completely satisfied with your purchase simply let us know and you'll be offered a full refund or replacement.

User questions & answers

Question:	Can it be installed on an existing zip line
Answer:	The existing zip line will have to be disconnected at the end where the brake coil is to be installed. The coil is fed over the end of the zip line cable before the cable is reconnected.
Question:	Up to what diameter cable can this spring brake accommodate
Answer:	3/8"
Question:	If the zipline brake is enough strong to stop riders safely
Answer:	Dear Customer Thanks for your question. This spring brake ,5.3ft length , can stop riders whose weight is within 350lb on the safe slope 2°to 3° of the ground（drop rang 3%-5%).
Question:	Will this spring brake rust easily
Answer:	Dear customer, Thanks for your question. Our spring brake won't rust easily, because it is covered antirust oil. it will last as long as the cable it is on.

Product description

Package include: 1 x Zip Line Trolley Pulley

• Heigth: 11cm / 4.3inch；Width: 8.5cm / 3.13inch；Lenght:2.9cm / 1.143inch
• Stainless steel sheaves for excellent durability.
• Closed Strength: 6700lbs / 30KN ； Maximum allowable speed: 35 m/s
• The wheels have bearings, not just a metal shaft！！
• CE Certification: EN12278

User questions & answers

Question:	What carabiner have you all used for this? Seems the one I bought leans to the side and is not letting the wheels run center on the cable. Thanks
Answer:	Yes
Question:	Can this trolley be used on 3/8" cable
Answer:	No it’s blurry. It’s absolute junk. Don’t waste your money!!
Question:	How Many pounds can this hold
Answer:	This is a very funny toy gun。so beautiful, so cool. You do need a small screwdriver to open the battery compartment and 3 AA batteries. Once assembled, pull the trigger and then the ammo rotates through, it lights up and the barrel vibrates. and the camo on the gun, and the whole thing feels really good, really cool.
Question:	Hi, I'm looking for a pulley, for a 500-meter long zipline, which one is good for me
Answer:	I suspect due to the liberal run city and state. Just a hunch. Big brother is watching.

• [SAFETY MATERS] We designed our heavy duty Zipline Brake Spring with premium special stainless spring steel. The spring compression can effectively absorbs the momentum of the high speed rider and brings them to a slow down stop. keep you and your little ones stay away from the trees. The heavy-duty polymer ends that are secure with clamps for maximum durability.
• [APPLICATION] These brake springs are designed for backyard zip lines over 5.5ft, compatible with 3/16, 1/4, 5/16, 3/8 and 1/2 inches diameter zipline cable(wire). It could be used as a stand alone zip line stopper or as a secondary safety backup for a primary brake system, when needed, 2 springs can be used together to add more brake distance from the trees.
• [PREMIUM MATERIAL] The spring is made of special spring stainless steel, the stopper blocks are made of premium Nylon, you can use it for years without get rust and broken. The Nylon Stoppers at each end protect the cable, trolley, and the rider with a smooth contact. Two stainless steel fasten clamps hold the Nylon ends firmly in the spring.
• [EASY INSTALL] Just feed the cable through the rubber ends of the spring brake and you are ready for installation within 2 minutes without any tools. These Nylon stoppers also could be removed add the spring to the zip line without taking the cable down for installation by twisting it right onto the cable.
• [100% SATISFACTION OR MONEY BACK] If you're not satisfied with our zipline stopper, please send them back for a full refund. Feel free to contract us when you have any concern with the products, we will ensure you have a 100% positive purchasing experience.

Product description

Here’s An Amazing Way To Become Your Neighbourhood’s Coolest Parent!

Don’t you want to spend quality time with your kids?

Are you looking for safe and fun ways to encourage outdoor activities for your children?

You can finally turn your backyard into a magical amusement park effortlessly!

Presenting The CTSC Ultimate Children’s Zip Line Kit, The Safest & Most Durable Outdoor Entertainment Set Available On Amazon!

Now you can become your child’s superhero by giving them this mind-blowing backyard zip line swing set!

Designed with safety and comfort in mind, our premium zipline starter’s kit will allow your kids to spend endless hours of gliding fun in the comfort of your backyard!

When It Comes To Your Children, Safety Is Our Top Priority!

Our ultimate zipline cable set has been tested to meet strict CE and RoHS quality and safety certifications, so you can rest assured that your children will be 100% protected!

In addition, we have utilized sturdy accessories, such as galvanized steel cables, durable plastic parts and non-slip grip handles to ensure maximum comfort and safety!

Save Time & Effort With Our Comprehensive Installation Guide!

Even if you are not a handy person, you can effortlessly install this high-quality zip line bundle due to the simple and efficient installation guide!

Plus, just to make your life easier, we have pre-assembled the trolley!

Still Not Convinced? – Here’s What You Get!

Steel trolley with sealed ball-bearing pulleys

95ft main cable

7ft sling cable

U clamps and carabiners

5.3 Foot Stainless Steel Spring Brake

Comfy seat & rope

Instruction book

Why Spend Another Boring Day Indoors? This Zipline Set Will Guarantee Hours Of Outdoor Fun!

Indulge Yourself! Click “Add To Cart” Now!

• ✅SAFETY COMES FIRST: Our zip line kits includes a 5.3 Foot Stainless Steel Spring Brake as a braking system, so the zipline does not end at a sudden stop. When it comes to kids' outdoor activities and playground equipment, quality means the world to parents- that’s why we have carefully constructed a product that guarantees complete safety for our little ones. This zip line meets the international quality standards (RoHS & CE) and can easily hold up to 250 lbs!
• ✅TURN YOUR BACKYARD INTO A PLAYGROUND: Surprise your child by transforming your backyard into a playground. Your child will remember this backyard zip line for a lifetime!
• ✅QUICK & EASY INSTALLATION: Installation is easy and takes 20-40 minutes with step-by-step, easy-to-follow instructions. A fully assembled steel trolley and all other necessary parts are included.
• ✅DESIGNED FOR CHILDREN: Accommodating riders up to 250 lbs but comfortable for children, this kit includes non-slip rubber grips and a comfort disc seat with adjustable height, Adult SHOULD BE TESTED FIRST after installed!
• ✅SATISFACTION GUARANTEED: Our zip lines are backed by a hassle-free money-back 10-year guarantee. Come with 3/16in(5mm) galvanized steel cable, Thicker and Safer!

User questions & answers

Question:	Can I replace the cable for a 130 ft 5/16 zipline cable with this kit? The one that came with the kit is not long enough
Answer:	Zip line don’t have to be attached to a tree. It also could be fixed on a post cemented in the ground which must be very stable for safety
Question:	What is the difference between the yellow and blue option
Answer:	No. I doubt you could stretch a 1,000’ cable tight enough to work. 1,000’ is a commercial application. You would need extremely strong towers or giant trees. Then some way of mechanically stretching the cable.
Question:	Is it possible to get replacement brake parts? The block on the cable is wearing out
Answer:	Yes, it will work well. Our zipline kit come with a 5 foot sling cable and 110 foot main cable, the 5 foot sling cable was used to wrapped around the start tree, and the 110 foot main cable should cover the distance between the two trees and the end tree's circumference, the sling cable and the main cable connected by a 12 inch turnbuckle. We are committed to providing the best products and service for our customers. All our products purchased with us has 10-year limited warranty. Please don't hesitate to contact us First if ever a problem should arise. We will give you a reply less then 8 hours after we received your email, and we will do our best to help you solve the problem. Thank you again for spreading the Love with our COMPANY! Hope to see you again soon! Have a nice time, Best Regard, Jhon CTSC Zip Line Equipment
Question:	Pics and video only show spring brake. Specs list bungee, but mention spring. Which braking system is actually included
Answer:	Certainly, or wrap excess around termination tree/post.

Product description

Looking for a SAFE Tandem Trolley for your Backyard Zipline Set?

Try NAXEN Zipline Pulley!



Never get Rust.

Made from stainless steel(sheaves) and aircraft aluminum alloy(plate), the pulley can easily handle any outdoor enviornment.



Cable Compatible.

With stainless steel sheaves, the tandem trolley can work on cable and textile rope both.



Smooth Rotation.

Thanks to ball bearing, NAXEN Zipline Pulley features great smooth, maximum speed rating up to 35 m/s.



Super Sturdy.

The MBS of this pulley is rated at 30kN (6700lbs).



Professional Oval Carabiner Available.

You can choose our professional carabiner to connect with the pulley.



Specification

Pulley

Material:

-Sheave: Stainless Steel

-Plate: Aircraft Aluminum Alloy

Break Strength: 30kN

Maximum Allowable Speed: 35 m/s.

Ball Bearing: Yes

Max Rope Size:

-Rope: 13 mm

-Cable: 12 mm

Certification: CE EN12278



Carabiner

Material: Stainless Steel

Breaking Strength: 25kN

Certification: CE EN362

• Super Smooth. NAXEN zipline pulley is mounted on ball bearing, features smooth rotation up to 35 m/s.
• Cable Acceptable. The tandem double pulley can work on steel cable and textile rope both.
• Safety Pulley. Made from aircraft aluminum alloy, the speed dual trolley is sturdy enough to support up to 30kN (6700lbs)
• CE Certification. Zipline pulley and Carabiner both get CE Certification and meet EN12278(pulley) EN362(carabiner) standard.
• Build your Backyard Zipline Set with NAXEN Tandem Speed Trolley Now!

User questions & answers

Question:	What size cable is recommended for this trolley? Is a 1/4" too small
Answer:	I'm using it on 1/4" steel cable and it works fine
Question:	What size poly cable would be too big
Answer:	1/2” is the limit I think.
Question:	What are the manufacturer recommendations for cable sizes & weight bearings - they fo not list - i'd appreciate advise (answer in english, plz) - tku
Answer:	quarter inch / 250 lbs.
Question:	Is there a brake or braking system compatible with this trolley
Answer:	There is no brake. The 'brake' is the tree you're going to, which if too hard of a hit, use a spring coil stopper or less slope. I don't know of these coming with a brake.

Product description

Zip Line Sling Cable

• Zip Line Sling Cable

User questions & answers

Question:

What is the working load limit for this product

Answer:

Hope this helps: https://youtu.be/q_kClFmzzZo Solar Robot Educational Kit 13-in-1 is a set for individual assembly of 13 different robots that work on an engine powered by a solar panel. It can easily be changed to the wagging-tail dog, running beetle, walking crab, surfer, speedster, or boxer chaser. The robot kit provides unique accessories and parts that make the robot move on land and water. Do take note that all extra plastic edges need to be trimmed off to facilitate the movement of the final creation. Any extra plastic edges would immobilize the end product.

Product description

More Details



Our Brake Block Kit is recommended for use on most zip lines. It ensures a smooth, safe finish at the end of the ride. These can easily be added to your existing zip line without taking down the cable. 



Kit contains:

20' of 1/2" bungee rope

ZLP Brake Block 

1- 3/8" x 3 1/2" Lag Screw Eyebolt 

2 - 3/8" Quicklinks

• Comes with a small brake block, 1/2" bungee cord, and accessories
• Ensures a smooth, safe finish at the end of the ride
• Can easily be added to your existing zip line without taking down the cable

User questions & answers

Question:	Is there a weight limit that this will stop? I understand different speeds and forces are involved but will it break if a 250lb person uses it
Answer:	Honestly, I would be afraid to try. Ours was up for about a year and my 90lb. 13 year old granddaughter slammed into a try when the brake line snapped. Fortunately no bones were broken but she was hurt. The company told me there was no warranty and not even an apology. We replaced it with a much heavier bungee cord. Anyway, examine your equipment on a regular basis and no at 250lbs. I would never trust it.
Question:	Does this brake work with the Eagle 70' Seated Zipline
Answer:	I think the brake will work with any zipline because they are not connected in any way. The brake block is installed on the line and stops the "zipper."
Question:	where did you attach this to? (slackers recommends 100 lb bag) other options
Answer:	we attached it to one of those screw in the ground dog tie outs.
Question:	How is this installed - if you only have 20' of Bungee it seems that it will only work on short (20 foot) zip lines - Is taht correct or can I install
Answer:	Our zip line is 90 feet. I just put the block on the line and then attached the line to the front of my lawn tractor. I then moved the tractor closer or further away depending on the weight of the person on the zip line. There is a lot of stretch to the line. I did also use a stake to attach the end of the line in the lawn. We ran into trouble when my 13 year old moved the stake and did not get it deep enough in the ground. The line pulled the stake out of the ground when she hit the end and the line flipped toward her and stuck her. Had an emergency room visit, two doctor calls and two sessions with a physical therapist. It really hit her hard. So be careful to have it securely attached. The lawn tractor works well as it is moved easily. The tractor is about 1/2 of the way between the jump off point and the destination point. Good Luck. It is a lot of fun but it needs to be supervised.

Product description

The TRSMIMA Zipline kit is Amazon's security and most durable outdoor equipment, it has a safety belt and a restraining lanyard!

Our ultimate zipper cable kit has been tested and meets strict CE and RoHS quality and safety certifications, so you can rest assured that your child will be 100% protected!

In addition, we also use sturdy accessories, such as super galvanized steel cables, thick swing seats and non-slip handles to ensure maximum comfort and security!

The strop pulley is made of double stainless steel, with super slippery, sealed ball bearings, long wear-resistant alloy pulleys, steel side plates and soft handles. Just open from the bottom, it can be firmly fixed to the strop, and can be installed from any part of the cable. After you finish the game and take it home, you can easily delete it.

The extra-long spring brake system is an important supplement to a smooth stop.

Package Contents:

-1 Main cable: 98 feet 1/4 inch

-1 Pulley: with handle and double stainless steel sealed ball bearings

-1 Spring brake: stop the rider smoothly

-1 seat belt: stay safe

-1 Adjustable belt: used with safety belt, trolley and safety belt

-1 seat and rope

-1 Turnbuckle: tighten and adjust the cable

-3 U-shaped clips: lock the main cable

-2 Carabiner: used with pulley

-1 instruction

-1 gift box

• 【Safety First】Safe strap + Adjustable Safety Belt + Seat + Reliable Braking System for Maximum Security. Our 60mm swing seats are more durable and thicker than other 38 mm swings,which can hold up to 330 lbs. The length is adjustable from 3.6ft to 6.5ft by adjusting buckle, so it will suitabale for kids of different ages and sizes. Our zipline kit with harness has much more safety than the zipline kit with seat.You will never need to worried about falling when having fun!
• 【High Quality Steel Cable】Trsmima Ziplines for Backyards is designed with your children’s safety top of mind .Our 98FT high-altitude zipline is made of 1/4 inch ultra-strong, galvanized aircraft stainless steel cable,. With durability and weather resistance, Sling Cable comes with zipline tree protect tube to avoid any hurting to your trees. It can easily support 330 pounds! The service life is up to several years!
• 【Non-slippery Rubber Grips, Super Smooth Zipline Trolley】 The zip-line pulley is made of double stainless steel, with super-slip, sealed ball bearings, long wear-resistant alloy pulleys, steel side plates and soft grips. Just open from the bottom, it can be firmly fixed to the strop, and can be installed from any part of the cable. When you finish the game to take home, you can easily remove it.
• 【6.5FT SUS304 Stainless Steel Spring Brake System】 Unlike other ordinary springs on the market, our springs are made of heat-treated stainless steel spring steel, which is not easy to rust. Our rubber plug has a built-in high-quality iron tube, which can prevent the cable from rubbing the plug for a long time, which will cause the plug to break, so the zip line kit will not suddenly stop! Spring brakes can effectively ensure a safe distance between your child and the trees to ensure security！
• 【10 Year Limited Warranty Allows You To Spend A Happy Time!】Designed by TRSMIMA, the durable and durable zipline suit is a good partner for children to grow up. This interesting gift will definitely make you very satisfied! However, if for any reason you are not satisfied with the heavy-duty Zip Line Kit for Kids, you can refund the full refund at any time within 30 days! If you encounter any problems, please contact us first, we will try our best to help solve! Please rest assured to buy!

User questions & answers

Question:	Will the cable rust
Answer:	Yes you can remove it, and use just the handles.
Question:	Is there some instructions as to how to attach the safety harness & lanyard + how to adjust the seat
Answer:	I put mine at about a 20 degree angle; its fast enough with a good pull to put my kids (11&12) vertical at the end/brake. You can pull slower for younger children and it's not as fast.
Question:	Will this work if my trees are closer to 50 feet apart
Answer:	The cable is 90 feet long. If you are asking for the diameter of the cable, I don't know but can tell you that it can support a person weighing up to 125 lbs. It supports my two grandchildren very well. Hope this helps.
Question:	Can you get a longer main cable? I need 150 ft
Answer:	The zip line kit has been tested for over 600-pound weight limit. But due to maintenance requirements over time, we have lowered it to 200 pounds 3x weight limit.

Product description

About Our Zipline Spring Brake System:

We have improved the manufacturing process of the spring.Extre large long 6.5' Long 1 1/4" outer diameter compression spring, a safer zipline spring brake.

Our spring is made of heat treated stainless spring steel,it has longer service life and better elasticity.Not easy to rust.

Our rubberized stoppers have built-in high-quality iron tube, which can prevent the cable from rubbing on the stoppers  for a long time to cause the stoppers to break.

All of this ensures that more customers could buy a safe and durable zipline brake kit, allowing more children to play safely in the yard without having to worry about hitting trees.

Specifications:

Fits Cable for 3/16, 1/4, 5/16, 3/8 inches diameter, over 60 feets zipline cables.

Installation:

1. Before installing the zip line system, the cable should be insterted into the spring.

2. Cross the cable from one end to another end. 

3. Place the spring brake on the turnbuckle side and keep a safe distance from the end point.

• ✔️EXTRA LARGE LONG--6.5' Long 1 1/4" outer diameter compression spring, a safer zipline spring brake.Suitable for zip lines 1.over 60ft, compatible with 3/16, 1/4, 5/16, 3/8 inches diameter zipline cable/wire.This compression spring brake will give you that extra cushion you need and 100% guarantee your safety.
• ✔️PREMIUM QUALITY:Unlike other normal spring on the market, our spring is made of heat treated stainless spring steel,it has longer service life and better elasticity.Not easy to rust.
• ✔️PATENTED DESIGN:Compare with other stoppers on the market, Our patented design:Rubberized stoppers have built-in high-quality iron tube, which can prevent the cable from rubbing on the stoppers for a long time to cause the stoppers to break.The rubberized stoppers at each end protect the cable, the trolley, and the rider with a smooth finish.
• ✔️EASY TO INSTALL: Just feed the cable through the rubber ends of the spring brake and you are ready for installation,you can finish it within 3 minutes without any tools.
• ✔️SAFETY COMES FIRST:Compression of the spring absorbs the momentum of the rider and brings them to a stop. This compression spring brake will give you that extra cushion， help you and your little ones stay away from the trees to have a fun zipline sports.when a rider intentionally hits the spring, they get a good bounce back up the line and don't get hurt.

User questions & answers

Question:	how many pounds will this sping stop at about 6 degrees
Answer:	Dear Customer Thank you for your question. The heavy-duty spring brake is 6.5 feet in length and can stop cyclists weighing less than 450 pounds on a safe slope of 2° to 3° from the ground (decrease by 3%-6%). Please rest assured to use!
Question:	The trolley from zip line keeps getting stuck in the rubber plunger at the end of the brake. If the rubber plunger will broken soon
Answer:	It won’t, it has longer service life. It is different from other springs, the seller designed a built-in iron tube inside the plug，so good!
Question:	Is this spring brake easy to rust
Answer:	NO!It is made of stainless steel and will not rust. I have used it for 6 months and the quality is very good!
Question:	Is it suitable for 5/16-inch wire
Answer:	This zipper cord bracket kit is compatible with 3/16, 1/4, 5/16, 3/8 inch diameter zipper cords.

Product description

HEAVY DUTY HANDLE BAR--The solid handle bar is a little heavy for the kids' zip line, but that's necessary when their safety is concerned. 15.75 inches long, 3.85 lbs weight.

The advantage of this unit is it is quickly and readily removable form the line and therefore a rider can disconnect and carry it to the top as another rider is already coming down. Eliminating the need to bring the trolley all the way back to the start for the next rider. Using dual pulleys instead of one also substantially increased the speed because it holds the operator straight and doesn’t waste energy on the twisting from side to side. Use it as a primary zip line trolley or as a secondary one.

• EASY TO USE--Due to the ease of use and removal, the CARAPEAK trolley is ideal for backyard zip lines. It can be put on the cable after the wire is attached at both ends. Just unlock the carabiner and lift the trolley from the line to carry it back to the top of your zip line or on to the next zip line! Nice that you can take it off and store inside even if your line is still outside
• FITS 1/4 5/16 3/8 1/2 INCHES CABLE--Compatible with cable sizes 1/4" - 1/2" in diameter. The trolley have a gap between the bearing and the frame area. Using this for a zipline with smaller cable, it will get snagged between the rollers and the side
• STRONG ENOUGH FOR WORRY FREE ZIPLINING -- The trolley with 30kN (6,744lbs) minimum breaking strength tested ensue your safety. CE certification. It has durable 7075 aluminum alloy sheaves mounted on tough sealed stainless steel ball bearings for excellent efficiency. Double wheels to stay straight and fast. This trolley weighs 280 g/9.9 oz and measuring 4.2" long, 3.4" wide and 1.1" height
• HEAVY DUTY CARABINER--Made of aircraft grade 7075 aluminum. 25kN (5,620lb) gate closed, major axis rating. CE1019 certification. This auto-locking 'biner weighs 78 g/2.75 oz and measuring 4.3" long and 2.4" wide, the gate opening is 0.74"
• AUTO-LOCKING CARIBEANER--This standard twist lock type is a 2-operations locker, requiring a twist and then pressure on the gate to open. It automatically locks when you let go(fastest way to lock a carabiner)

• Aluminum and magnesium alloy, stainless steel
• Imported
• Tensile strength 30kN.
• Apply for Max. 13mm diameter ropes.
• Feature efficient bearings for high-speed adventure.
• Stainless steel pulley which is made of high quality aluminum and magnesium alloy.
• For climbing, rescue, aloft work, engineering, caving, etc.

User questions & answers

Question:	What size poly cable & weight bearings would be recommend
Answer:	12mm/30kN is the limit I think.
Question:	Do these have ballbearings
Answer:	They have sealed ball bearings-thus the strength of 20 kilonewtons.
Question:	Would this pulley work with 1/2 inch cable
Answer:	No, 12mm or about 7/16 is as large as this trolley is rated for.
Question:	Can this pulley be used for rescue from high building
Answer:	Someone could be lowered with it, but that's about it. Rope would need to be twice as long as building is high. Better off with single rope and descender ring.

Product features

Lixada 30kN Trolley Pulley with Ball Bearing

This double climbing roller is light, fast and extremely durable. The trolley has aluminum side plates with smooth, rounded edges.

Two stainless steel discs with sealed stainless steel ball bearings prevent twisting for increased speed, efficiency and safety.

This roll is not only compatible with steel ropes, but also with ropes.

• Sturdy & Smooth
• Double Ball-bearing
• Smooth Bearing Capacity

Dual Pulley Specifications

• Color: Burgundy / Blue / Gold (optional)
• Material: Aluminum and magnesium alloy, stainless steel
• Use rope: 13mm (max diameter)
• Use cable: 12mm (max diameter)
• Strength: 30kN
• Dimension: 10.8 * 7.8 * 3.6cm / 4.3 * 3.1 * 1.4in
• Weight: 284g / 10oz

SUPER SMOOTH

Lixada zipline pulley is mounted on ball bearing, the double sheaves of pulley provides great smooth rotation and efficient performance, the maximum allowable speed 35 m/s.

SAFETY PULLEY

High strength stainless steel ball bearing and aluminum body. only 280g but Breaking Strength up to 30kN (6700lbs).

CARABINER

High strength stainless steel, about 100g, Breaking Strength: 25KN.

CABLE ACCEPTABLE

The hole for easily clipping carabiners, double steel sheaves could compatible with both textile rope and cable.