ZIPEAK 3/16" (5mm) Galvanized Steel Zipline Cable (3,700 lbs)
"Replaced our old frayed line with the 100ft 5mm spool. Smooth surface, high-grade aircraft twist, and zero kinking during install. Fast shipping too." — Verified Buyer (★★★★★ 4.9/5 from 22 reviews)
🎁 Seasonal Savings: Use code HALLOWEEN10 at checkout for 10% off your entire order! Plus, all orders over $99 qualify for Free Express US Shipping (delivered in 3–4 business days).
Build or refresh your backyard zipline with professional aircraft-grade rigging wire. The ZIPEAK 3/16-Inch (5mm) Galvanized Steel Zipline Cable is engineered with a dense 7x19 strand configuration, delivering exceptional flexibility, high fatigue resistance, and an ultra-smooth glide surface for residential zipline trolleys. Hot-dip galvanized with a protective zinc coating, this 3,700 lbs proof-tested cable withstands year-round rain, UV rays, snow, and moisture without corroding.
🛡️ Key Features & Engineering Highlights
- 7x19 Aircraft-Grade Construction: 7 outer bundles of 19 precision-twisted steel wires provide unmatched bend fatigue resistance and ultra-smooth tracking for trolley wheels.
- 3,700 lbs Minimum Breaking Strength (MBS): Proof-tested to 16.4 kN, delivering a secure 740 lbs safe working load limit (at a 5:1 engineering safety factor) for children and recreational riders up to 250 lbs.
- Hot-Dip Galvanized Weatherproofing: Heavy zinc barrier prevents rust, flaking, and oxidation in humid, coastal, and snowy backyard environments.
- Continuous Single-Piece Spools: Available in 100ft, 150ft, and 200ft unbroken lengths—shipped neatly coiled with capped cable ends to prevent fraying during setup.
- Universal Trolley Compatibility: Precision 3/16" (5mm) outer diameter fits all CTSC residential trolleys, stainless steel pulleys, and standard dual-bearing grooved sheaves.
📏 Technical Specifications
| Product Type | Residential & Backyard Zipline Cable |
| Cable Diameter | 3/16 Inch (5mm) |
| Strand Construction | 7x19 Aircraft-Grade Wire Rope |
| Material / Finish | Hot-Dipped Galvanized Carbon Steel |
| Minimum Breaking Strength (MBS) | 3,700 lbs (16.4 kN) Proof Tested |
| Safe Working Load Limit (WLL) | 740 lbs (335 kg) with 5:1 Safety Factor |
| Available Continuous Lengths | 100ft (30.5m), 150ft (45.7m), 200ft (61m) |
| Linear Weight | Approx. 6.5 lbs (2.95 kg) per 100ft |
| Max Recommended Rider Weight | Up to 250 lbs (113 kg) for backyard residential setups |
🔧 Recommended Installation & Rigging Tips
- Slope & Sag Calculations: Maintain a 3% to 6% elevation drop (3–6 feet of drop per 100 feet of run) with 2% natural midpoint cable sag under load.
- Clamp Rigging Rule: Use a minimum of 3 galvanized U-bolt wire rope clamps at each anchor eye, spacing them 6 cable diameters apart. Remember: "Never saddle a dead horse" (the U-bolt sits over the dead tail end).
- Tensioning: Pair with the CTSC Cable Tensioning Kit and a 3/8" or 1/2" turnbuckle to easily eliminate excess slack without damaging tree trunks.
📦 What's Included in the Box
- 1 × Continuous Spool of ZIPEAK 3/16" (5mm) Galvanized Steel Zipline Cable (Selected Length)
- 2 × Protective End Caps / Swaged Tips
🤝 CTSC Quality & Guarantees
- 1-Year Manufacturer Warranty covering wire rope integrity and galvanized coating
- 30-Day Money-Back Guarantee
- Free Express US Shipping on orders over $99 (delivered in 3–4 business days)
❓ Frequently Asked Questions
Q: Is 3/16" cable suitable for adult riders?
A: With a 3,700 lbs breaking strength and 740 lbs WLL, it safely supports recreational riders up to 250 lbs on spans up to 150–200ft when properly tensioned with tree anchors 12"+ in diameter.
Q: What is the difference between 7x7 and 7x19 cable?
A: 7x19 consists of 133 individual wires versus 49 in 7x7. This makes 7x19 much more flexible, smoother under trolley wheels, and significantly more resistant to metal fatigue over seasons of heavy use.
Q: Do I need tree protection straps?
A: Yes. Never wrap bare wire rope directly around live trees. Always use CTSC 59" tree protectors or wooden spacers to protect tree bark and cambium.
- Supports up to 800lbs
- CE & RoHS Certified
- Designed and tested with your safety in mind.
1、In order to make your order to arrive more quickly and securely, we will deliver the goods within 24 hours after receipt of order payment. Please ensure that your order address is correct.
2、Before delivery, we will inspect and pack the goods to ensure that the goods received by our customers are in good condition. If there are any problems with the goods, please contact us at the first time.
3、We offer free delivery service,express delivery is estimated to be delivered within 3-4 days.The shipping time during Holiday Season (Christmas etc) could be longer than usual time. Please add another 5-10 days as a delay.
Note：if your shipping address is in a remote area, the express delivery service will require additional delivery costs, and we will not pay for this freight. So we will contact you for the first time, and you need to pay the freight, then we will deliver the goods.
We promise to do the right thing. Over the years, every decision and product we make is focused on customers. Our goal is to bring more joy to those who believe in us. We should be responsible for doing the right thing and the right way.
The products we produce bring laughter to our customers, and we are truly proud of them. If our products cause trouble to our customers, we sincerely feel sorry and try our best to make up for our mistakes. Customer satisfaction is our eternal pursuit.
We promise never to exaggerate the quality of our products. We strictly test every product to ensure that it meets the safety standards and passes the quality certification.
We promise if there are any problems with our products, please contact us in the first time, or you can request a return or refund within 30 days of receiving the product, but please contact us before returning，you just pay for the return shipping. No strings attached.
After using our products，if you are satisfied with our products and services, please 5 stars, if you are not satisfied, please contact us at the first time, we will handle it for you and make you satisfied.
1、Please strictly follow the instructions and ensure the installation is solid.
2、Kids under the age of 10 need to use zipline under the guidance of adults or guardians.
3、Strictly follow kids and adults with a weight limit of 250 pounds.
4、Heart disease and hypertension patients, pregnant women, please do not use products, in order to avoid accidents.
5、Installation between two trees or ends is required, and there is a clear runway between the two without shelter, preferably with a slight slope in the middle of the runway.An end-to-end slope of 3-6%.
Instruction Book Installation Manual: For Installation Video Please See Blog
