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Since its establishment in 2002,
Zhangjiagang SMK MFG. Co., Ltd.
has specialized in cargo securing and control products, with over 20 years of experience in R&D and global export. The company operates three factories and a large-scale warehouse center, forming an efficient international supply network.
SMK is China Xstrap 61858 Bottom Mount Standard Portable Winch with 2 Set Screws Break Strength 16,500 lbs Factory and Custom Xstrap 61858 Bottom Mount Standard Portable Winch with 2 Set Screws Break Strength 16,500 lbs Suppliers. The product range includes tie-down straps, bungee cords, tow straps, lifting slings, hoists, and 4x4 accessories, widely used in transportation, logistics, outdoor, and industrial sectors. Its in-house brand XSTRAP enjoys strong recognition in global markets, alongside flexible OEM/ODM services for customized needs.
With over 8,000 sqm of production space, SMK is equipped with advanced automated lines and in-house testing labs, ensuring full-process quality control from raw material to finished goods. The company is ISO 9001 certified, SMETA audited, and has passed C-TPAT anti-terrorism inspections and multiple GS and patent certifications.
Looking ahead, SMK will continue to upgrade its cargo control systems, stay close to customer needs, and provide high-quality, efficient products and services worldwide.
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1. Product Introduction
The Xstrap 61858 Standard Portable Winch is designed for operators who need a flexible, non-permanent tie-down solution for flatbed trailers. Equipped with two heavy-duty set screws, this portable winch can be quickly positioned along the trailer rail without welding, offering greater versatility for changing load configurations. Built with a durable 7mm steel frame and rated at 5,500 lbs WLL and 16,500 lbs Break Strength, it provides dependable performance for machinery, lumber, palletized freight, and other industrial cargo.
2. Product Specification
Product Name
Bottom Mount Standard Portable Winch
Mounting Style
Portable, Bottom Mount with 2 Set Screws
Capacity
5,500 lbs/16,500 lbs
Compatible Strap Size
4" Winch Straps
Material
Carbon Steel
Finish
Black Powder-Coated
Usage
Flatbeds, step decks, adjustable tie-down positions, industrial freight
Packaging
1-Pack
3. About This Item
- Portable Design with Dual Set Screws for Flexible Positioning: The winch attaches using two heavy-duty set screws, allowing operators to reposition it anywhere along the trailer rail without welding, ideal for loads that require frequent tie-down adjustments.
- Durable 7mm Steel Frame for Heavy-Duty Applications: Constructed from reinforced 7mm carbon steel, this portable winch delivers strong structural integrity and long-term resistance to bending and impact.
- Quick Installation Without Permanent Modifications: The clamp-style mounting system eliminates the need for welding, making it easy to install, remove, or relocate based on different cargo requirements.
- Smooth Strap Feeding for Efficient Load Securement: The drum is engineered to guide 4" straps evenly, helping operators tighten and release tension quickly without snagging or bunching.
- High Load Ratings for Professional Hauling: With a 5,500 lbs Working Load Limit and 16,500 lbs break strength, this portable winch provides reliable holding power for machinery, lumber, steel, and other heavy freight.
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