CLGR® Chain Tensioner U-Adjuster Dogbone Shackle Tensioner, also known as Chain Tensioner Dogbone Shackle Double type.
It is a heavy-duty tensioning device designed to connect and tighten chains in demanding applications. Its double shackle mechanism allows for precise adjustment and secure gripping on both ends, providing reliable tension control for heavy chains.
The twin U-shaped shackle design offers greater adjustment range than single-type tensioners, making it suitable for joining chains, adjusting chain length, and maintaining consistent tension in applications such as tire chains, mooring systems, and industrial chain assemblies.
Manufactured from high-strength steel with a corrosion-resistant finish, this double-type chain tensioner delivers durability and dependable performance in harsh environments. The threaded body and nut system allow easy on-site adjustment without special tools.
Available in various sizes to suit different chain diameters and load requirements. Custom configurations available upon request. Contact us for more details.
Brand | CLGR® |
Material | Alloy Steel |
Diameter | 18MM to 80MM |
Surface finish | Hot Dip Galvanizing |
Application | Industrial, Household, Marine Fender, Port Fender |
| Tips | Customization Available |
Chain Tensioner U-Adjuster Dogbone Shackle Tensioner Drawing:

Part No. | Model | Size(mm) | ||||||
- | A | B | C | D | T | X | Y | |
CRCTDS30 | M30 | 290 | 110 | 170-220 | 172 | 28 | 165 | 55 |
CRCTDS36 | M36 | 330 | 125 | 195-260 | 198 | 32 | 195 | 65 |
CRCTDS39 | M39 | 365 | 140 | 215-280 | 220 | 36 | 215 | 73 |
CRCTDS42 | M42 | 400 | 150 | 240-310 | 237 | 40 | 230 | 80 |
CRCTDS45 | M45 | 430 | 160 | 255-335 | 257 | 40 | 250 | 90 |
CRCTDS48 | M48 | 455 | 170 | 275-355 | 271 | 45 | 265 | 95 |
CRCTDS52 | M52 | 485 | 185 | 290-375 | 292 | 45 | 285 | 100 |
CRCTDS56 | M56 | 520 | 195 | 310-410 | 312 | 50 | 300 | 105 |
CRCTDS60 | M60 | 560 | 210 | 335-440 | 335 | 55 | 325 | 115 |
CRCTDS64 | M64 | 600 | 225 | 360-470 | 358 | 60 | 345 | 120 |
CRCTDS68 | M68 | 640 | 245 | 380-500 | 385 | 60 | 365 | 120 |
Chain Tensioner Dogbone Shackle Diagram:
