CTSC 1/4" (6mm) Zipline Anchor Cable Sling Wire Rope
"Heavy-duty cable with cleanly swaged thimble eyes on both ends. Wrapped around our 22-inch oak with CTSC tree wraps and hooked straight to our turnbuckle. Rock-solid anchor point." — Verified Buyer (★★★★★ 4.95/5 from 26 reviews)
🎁 Bundle & Save: Buy any 2 accessories and automatically get 10% off at checkout! Plus, use code HALLOWEEN10 for additional seasonal savings and free US shipping on orders over $99.
Anchor your zipline cable around any tree trunk or structural anchor post with commercial-grade confidence. The CTSC 1/4" (6mm) Zipline Anchor Cable Sling (also known as a start cable or tree wrap sling) is forged from high-tensile 7x19 galvanized aircraft wire rope and finished with heavy-duty swaged steel thimble loops on both ends. Engineered to prevent wire crimping and friction wear, it provides a dedicated, rock-solid anchor connection for turnbuckles, shackles, and cable tensioning systems.
🛡️ Key Features & Anchor Rigging Advantages
- Heavy-Duty 1/4" (6mm) Aircraft Steel: 7x19 strand configuration provides exceptional flexibility around curved tree trunks while maintaining a proof-tested 6,400 lbs breaking strength.
- Dual Swaged Thimble Eye Loops: Marine-grade steel thimbles fitted inside each swaged loop protect the wire rope from friction, sharp bend stress, and wear from turnbuckles or shackles.
- Preserves Main Cable Length: Eliminates the need to wrap and crimp your main zipline cable around the starting tree, keeping your primary cable straight and undamaged.
- Bark-Friendly Tree Installation: Designed to lay smoothly over CTSC 59" Tree Protectors or wooden slats, distributing tension evenly without girdling or harming tree bark.
- Versatile Length Options: Available in 8ft, 11ft, 14ft, and 16ft lengths to accommodate tree trunk diameters from 1.5ft up to 4.5ft.
📏 Tree Sizing & Circumference Guide
| Sling Length | Recommended Tree Trunk Diameter | Maximum Tree Circumference |
|---|---|---|
| 8 Foot (2.4m) | Up to 24 inches (2.0 ft) | Approx. 75 inches (6.2 ft) |
| 11 Foot (3.35m) | Up to 36 inches (3.0 ft) | Approx. 113 inches (9.4 ft) |
| 14 Foot (4.27m) | Up to 45 inches (3.75 ft) | Approx. 141 inches (11.7 ft) |
| 16 Foot (4.88m) | Up to 52 inches (4.33 ft) | Approx. 163 inches (13.6 ft) |
Pro Tip: Always measure your tree trunk's circumference at the exact height you intend to mount the sling, and add 1–2 feet of clearance for hardware connections.
📐 Technical Specifications
| Product Type | Zipline Tree Anchor Sling (Start Cable) |
| Cable Diameter | 1/4 Inch (6mm) |
| Wire Construction | 7x19 Galvanized Aircraft Steel |
| End Terminations | Dual Heavy-Duty Steel Thimbles with Swaged Sleeves |
| Minimum Breaking Strength (MBS) | 6,400 lbs (28.5 kN) Proof Tested |
| Safe Working Load Limit (WLL) | 1,280 lbs (580 kg) with 5:1 Safety Factor |
| Hardware Compatibility | 3/8" & 1/2" Jaw Turnbuckles, Screw Pin Shackles, Quick Links |
| Corrosion Protection | Hot-Dip Galvanized All-Weather Finish |
🔧 3-Step Anchor Rigging Walkthrough
- Step 1 — Tree Protection: Wrap CTSC Tree Protectors or wooden blocks around the trunk at your designated launch height.
- Step 2 — Position Sling: Wrap the 1/4" sling cable around the tree pads, bringing both thimble loop ends forward toward the zipline trajectory.
- Step 3 — Hardware Connection: Insert the jaw pin of your turnbuckle or 25 kN shackle through both loop eyes and lock securely before tensioning the main line.
📦 What's Included in the Box
- 1 × CTSC 1/4" (6mm) Galvanized Steel Zipline Anchor Cable Sling (Selected Length)
- 2 × Pre-Installed Steel Protective Thimbles with Swaged Sleeves
🤝 CTSC Quality & Guarantees
- 1-Year Manufacturer Warranty covering wire rope and swaged eye terminations
- 30-Day Money-Back Guarantee
- Free Express US Shipping on orders over $99 (delivered in 3–4 business days)
❓ Frequently Asked Questions
Q: Why use an anchor sling instead of wrapping the main cable around the tree?
A: Wrapping the main cable directly around a tree damages both the tree bark and the cable itself, shortening its lifespan. A sling keeps the main cable straight, preserves its full length, and makes seasonal removal or adjustment simple.
Q: What turnbuckle size fits this sling?
A: The reinforced thimble eye loops accept both 3/8" and 1/2" CTSC galvanized jaw-and-jaw turnbuckles, as well as 1/2" screw-pin anchor shackles.
- 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
