Japanese Open Body Turnbuckle
Product Description
Japanese Open Body Turnbuckle Product Overview
Japanese Open Body Turnbuckle is a standard industrial rigging tension fastener, manufactured strictly per JIS A5540 and CB/T3818 marine standards. Also known as wire rope tensioner and cable tightener, it features left-right reverse threads to quickly adjust the length and tension of steel ropes, tie rods and rigging lines, widely used in construction, marine, power and stage truss projects.
Different from closed turnbuckles, this open hollow structure is lightweight and allows visual thread inspection. It comes in three types: OO (eye-eye), OC (eye-hook), CC (hook-hook), adapting to permanent fixation and frequent disassembly working scenarios.
Japanese Open Body Turnbuckle Product Features & Advantages
• Standard & Universal Fit
Complies with JIS A5540 and CB/T3818 standards, fully qualified for global export and industrial engineering matching.
• Visible Open Structure
Hollow open-body design enables direct inspection of thread wear, rust and damage, easy daily maintenance.
• Fast Tension Adjustment
Dual left/right threads allow quick length and tension adjustment by hand, no tools needed, high efficiency.
• Complete Sizes & Types
Covers M6-M64 specifications with OO/OC/CC three styles for all tensioning scenarios.
• High Safety Load
Hot-forged carbon steel/alloy steel/stainless steel, breaking load reaches 3 times of rated working load, sturdy and anti-deformation.
• Strong Corrosion Resistance
Electro-galvanized, hot-dip galvanized and SUS304/316 stainless steel options for outdoor, marine and salt-spray environments.
• Anti-loosening & Durable
Support lock nut installation to prevent vibration loosening, ensuring long-term stable tension performance.
• Wide Application
Ideal for marine outfitting, building curtain walls, steel structures, power lines, stage trusses, guardrails and billboard cable tensioning.
Japanese Open Body Turnbuckle Our Factory Advantages
• Specialized Manufacturer
18+ years professional experience in JIS standard open turnbuckle production, focusing on high-quality rigging hardware.
• Rigorous Quality Control
Integral hot forging process + batch tensile testing, 100% standard compliant and qualified before delivery.
• Custom OEM/ODM Service
Support customized size, load grade, surface treatment, logo and packaging for personalized orders.
• Fast Delivery & Stock Support
Full M6-M36 conventional sizes in stock, support bulk wholesale and urgent orders.
• Factory Direct Price
No middleman markup, cost-effective industrial-grade products with bulk discount.
• Professional Technical Support
Provide model selection guidance and after-sales service, solve installation and usage problems timely.
Japanese Open Body Turnbuckle Product Specification Table
Part No | Spec(mm) | Turnbuckle body | Eye&eye Turnbuckle | Hook&hook Turnbuckle | Hook&eye Turnbuckle | |||||||
A | B | C | Weight(kg) | F | Weight(kg) | E | Weight(kg) | E | F | Weight(kg) | ||
TKDSJ-2017 -01 | 6 | 100 | 78 | 11 | 0.08 | 10 | 0.25 | 9 | 0.112 | 9 | 10 | 0.114 |
TKDSJ-2017 -02 | 8 | 125 | 100 | 12.5 | 0.15 | 12 | 0.47 | 9 | 0.215 | 9 | 12 | 0.218 |
TKDSJ-2017 -03 | 9 | 150 | 120 | 12.5 | 0.17 | 16 | 0.64 | 11 | 0.29 | 11 | 16 | 0.293 |
TKDSJ-2017 -04 | 12 | 200 | 164 | 18 | 0.29 | 20 | 1.26 | 16 | 0.57 | 16 | 20 | 0.585 |
TKDSJ-2017 -05 | 16 | 250 | 202 | 21.5 | 0.52 | 22 | 2.27 | 19 | 1.03 | 19 | 22 | 1.05 |
TKDSJ-2017 -06 | 19 | 300 | 250 | 25 | 0.85 | 28 | 3.91 | 20 | 1.77 | 20 | 28 | 1.78 |
TKDSJ-2017 -07 | 22 | 325 | 269 | 28 | 1.17 | 33 | 5.74 | 21 | 2.6 | 21 | 33 | 2.58 |
TKDSJ-2017 -08 | 25 | 350 | 285 | 32.5 | 1.69 | 35 | 8.21 | 26 | 3.73 | 26 | 35 | 3.7 |
TKDSJ-2017 -09 | 28 | 400 | 310 | 45 | 3.51 | 36 | 16.4 | 34 | 7.44 | 34 | 36 | 7.52 |
Frequently Asked Questions (FAQ)
Q1: What is a Japanese open body turnbuckle used for?
It is a professional rigging tension component used to adjust and fix the tension of steel ropes and tie rods, widely adopted in marine, construction, electric power, stage truss and outdoor fixing projects.
Q2: What is the difference between open body and closed body turnbuckles?
Open body turnbuckles adopt hollow open design, lightweight and allow visual thread inspection for easy maintenance. Closed turnbuckles are fully enclosed with invisible internal condition, more suitable for non-inspection fixed scenarios.
Q3: What are the types of Japanese open turnbuckles?
Three mainstream types: OO (eye-eye) for long-term fixed installation; OC (eye-hook) for quick assembly; CC (hook-hook) for temporary and frequent disassembly use.
Q4: Is your turnbuckle compliant with JIS standard?
Yes. All products strictly follow JIS A5540 and CB/T3818 standards, with professional load and tensile testing to meet export and engineering quality requirements.
Q5: What surface treatment options are available?
We offer three surface treatments: electro-galvanized (cost-effective, daily use), hot-dip galvanized (high anti-corrosion, outdoor use), SUS304/316 stainless steel (salt-spray & marine environment).
Q6: Can you provide OEM/ODM customization service?
Yes. We provide full OEM/ODM customization, including special sizes, custom load grades, logo printing and exclusive packaging per customer demands.
Q7: Is the turnbuckle safe for long-term use?
Our hot-forged turnbuckles have 3 times safety breaking load, optional anti-loosening nuts for stable long-term use. Avoid overload and conduct regular inspection for maximum safety.
Q8: What is your delivery time and supply capacity?
Standard M6-M36 sizes are in stock for fast delivery. Custom orders take 3-7 working days. We support large-volume long-term cooperative supply.