Turnbuckles
Pipe Turnbuckle DIN 1478 Eye and Eye Closed Body
A closed-body pipe turnbuckle with eye ends at both ends, conforming to DIN 1478 standard. It provides adjustable tension in rigging systems using a threaded barrel and rotating barrel mechanism. Suitable for tensioning cables, rods, and structural supports in construction, shipbuilding, and industrial applications. Available from M6 to M36 with working load limits from 230 kg to 4800 kg.
- Size
- M6-M36 Tips: Only suitable for use in tension
- Material
- Cold-drawn Seamless Steel Tube
- Type
- Jaw End, Eye End, Hook End Process: Drop Forged Surface: Hot Dipped Galvanized
- Packing
- Cartons or Gunny Bags and then on Pallets
- Catalogue Family
- Turnbuckles
- Certificates
- EN 10204 3.1 material test certificate on request
CAD files are supplied on request via WhatsApp or email rather than published for open download.
Key Benefits
What DIN 1478 Pipe Turnbuckle Gives You
- Adjustable tension in rigging systems without disconnecting components
- Closed pipe body resists deformation under high tension and prevents debris ingress
- Eye ends allow direct attachment to hooks, shackles, or anchor points
- Drop-forged construction ensures strength and impact resistance
- Hot-dipped galvanized finish resists corrosion in outdoor and marine environments
- Standard 4:1 design factor ensures safe working load is four times the minimum breaking load
- Compact design reduces bulk compared to multiple separate fittings
Application Scenarios
Where DIN 1478 Pipe Turnbuckle Is Used
- Tensioning guy wires on temporary construction scaffolds and steel structures
- Adjusting cable tension in shipbuilding and offshore platform rigging
- Securing load-bearing cables in crane systems and lifting equipment
- Stabilizing structural frames during transport and assembly
- Tightening tension in overhead conveyor systems and industrial rigging
- Mounting and aligning heavy machinery on foundations using adjustable tie rods
Who It Is For
Buyers This Product Is Built For
- Construction contractors specifying rigging hardware for temporary and permanent structures
- Shipbuilders and marine engineers installing tensioned rigging on vessels and docks
- Industrial maintenance teams adjusting tension in conveyor and lifting systems
- Rigging distributors carrying a standard turnbuckle range with DIN compliance
- Logistics and transport firms securing cargo with adjustable tension systems
Problems It Solves
Problems This Product Removes
- Need to adjust cable or rod tension without disconnecting the system
- Risk of deformation in open-body turnbuckles under high load or impact
- Corrosion damage in outdoor or marine environments due to poor surface treatment
- Inconsistent tensioning across multiple rigging points requiring manual adjustment
- Buying turnbuckles from multiple suppliers with different standards and finishes
- Lack of traceability and certification for safety-critical rigging components
Technical Features
Technical Features
- Closed pipe body made from cold-drawn seamless steel tube
- Eye ends at both ends for direct connection to hooks, shackles, or anchor points
- Drop-forged construction for high strength and impact resistance
- Threaded barrel with rotating mechanism for tension adjustment
- Hot-dipped galvanized surface finish for corrosion resistance
- Standard 4:1 design factor with minimum breaking load four times the safe working load
- Working load limit and marking stamped on the body for traceability
- Available in sizes from M6 to M36 with corresponding safe working loads
Specifications
DIN 1478 Pipe Turnbuckle Specifications
Values published in the Kailipu catalogue for this item. Anything not listed is available on request.
| Standard | DIN 1478 |
|---|---|
| End Type | Eye and Eye |
| Body Type | Closed Pipe Body |
| Material | Cold-drawn Seamless Steel Tube |
| Process | Drop Forged |
| Surface Finish | Hot Dipped Galvanized |
| Capacity Range | 230 kg to 4800 kg safe working load |
| Size Range | M6 to M36 |
| M6 Dimensions | L1 110 L2 88 L3 58 φ1 15 φ2 11.2 φ3 6 A 8 M 6 S.W.L 230 kg |
| M8 Dimensions | L1 110 L2 105 L3 65 φ1 17 φ2 14 φ3 8 A 10 M 8 S.W.L 440 kg |
| M10 Dimensions | L1 125 L2 125 L3 75 φ1 21 φ2 16 φ3 8 A 12 M 8 S.W.L 440 kg |
| M12 Dimensions | L1 125 L2 145 L3 85 φ1 25 φ2 18 φ3 10 A 16 M 10 S.W.L 600 kg |
| M16 Dimensions | L1 170 L2 170 L3 100 φ1 30 φ2 22.8 φ3 10 A 20 M 12 S.W.L 800 kg |
| M20 Dimensions | L1 200 L2 184 L3 115 φ1 34 φ2 27 φ3 12 A 24 M 16 S.W.L 1650 kg |
| M24 Dimensions | L1 255 L2 214 L3 130 φ1 42 φ2 32 φ3 12 A 30 M 20 S.W.L 2600 kg |
| M30 Dimensions | L1 255 L2 251 L3 140 φ1 51 φ2 38 φ3 16 A 36 M 24 S.W.L 3400 kg |
| M36 Dimensions | L1 295 L2 300 L3 170 φ1 63.5 φ2 50 φ3 16 A 45 M 28 S.W.L 4800 kg |
Full size table on request. The catalogue publishes a full dimension and capacity table for this item. Ask on WhatsApp or by email and we will send it as a PDF.
Materials
Materials And Finishes
- Cold-drawn seamless steel tube for the closed pipe body
- Drop-forged steel for the eye ends and barrel components
- Hot-dipped galvanized coating for corrosion resistance
- Threaded barrel made from high-strength steel with precision machining
Manufacturing Process
How This Product Is Made
1Cold drawing of seamless steel tube for the body
2Drop forging of eye ends and barrel components
3Heat treatment to improve strength and ductility
4Machining of threads and bore for barrel rotation
5Assembly of barrel into the body with proper alignment
6Hot-dip galvanizing of the complete unit
7Proof load testing and marking of safe working load
8Final inspection and packing
Quality Control
Quality Control On Every Batch
- Proof load test on production batches before release
- Dimensional tolerance check against published size table
- Breaking strength validation to confirm 4:1 design factor
- Visual inspection for surface defects and coating uniformity
- Material Test Certificate to EN 10204 3.1 issued with the order
- Third-party inspection accepted at the Qingdao warehouse before shipment
Customisation
Customisation Options
- Custom tonnage stamping on the body
- Private label and OEM marking available
- Custom surface finish including zinc plating, powder coating, or electrophoretic black
- Custom sizes and configurations built to a supplied drawing
- Packing configuration adjusted for carton count and pallet pattern
Compare
How It Compares With The Alternatives
An honest read on where this pattern wins and where another one would serve you better.
| Alternative | Honest Trade Off |
|---|---|
| Open-body turnbuckle | The closed pipe body resists deformation and debris ingress but is heavier and less accessible for inspection |
| Screw pin shackle | The turnbuckle provides continuous tension adjustment but requires more space and is not suitable for dynamic load changes |
| Adjustable rod with threaded ends | The turnbuckle is more compact and easier to adjust in tight spaces but has a lower maximum load capacity |
| Wire rope thimble and turnbuckle | The eye-to-eye design allows direct connection without additional fittings but requires proper alignment to avoid side loading |
Use Guide
How To Use And Inspect DIN 1478 Pipe Turnbuckle
- Use only in tension — do not apply bending or shear loads
- Ensure both eye ends are aligned with the load path to avoid side loading
- Adjust tension by rotating the barrel evenly on both sides
- Check that the galvanized coating is intact and free from damage before use
- Retire the turnbuckle if the body shows deformation, threads are stripped, or marking is illegible
- Verify the stamped safe working load matches the calculated load in the system
Related Products
Often Ordered With This Item
HD Turnbuckle Jaw Jaw, Heavy Duty Turnbuckles
Stainless Steel Turnbuckle H/E, H/H, E/E
Aluminum Body Turnbuckle Hook and Eye Alu Closed Body
Aluminum Turnbuckles Eye and Eye Alu Closed Body
Aluminum Turnbuckle Hook and Hook Alu Closed Body
Wire Rope Turnbuckle Commercial Type Malleable Steel
Turnbuckles hook and hook Commercial Type Malleable Steel
Galvanized Turnbuckle Eye/Eye Commercial Type Malleable Steel
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Answers
DIN 1478 Pipe Turnbuckle FAQ
Is this turnbuckle suitable for dynamic or shock loading?
No. It is designed for static or slowly applied tension only. Use a shock-rated fitting for dynamic applications.
What is the design factor for these turnbuckles?
A standard 4:1 design factor applies, so the minimum breaking load is four times the stated safe working load.
Can I get a Material Test Certificate?
Yes. A Material Test Certificate to EN 10204 3.1 is supplied with every order on request.
What surface finishes are available?
Standard finish is hot-dipped galvanized. Custom finishes include zinc plating, powder coating, and electrophoretic black.
Can I order custom sizes or drawings?
Yes. Custom sizes, configurations, and assemblies can be built to a supplied drawing or specification.
How are they packed for export?
Standard packing is cartons or gunny bags on pallets. We can configure carton count and pallet pattern to suit your warehouse or retail needs.
What is the maximum safe working load?
The maximum safe working load is 4800 kg for the M36 size. Refer to the size table for all capacities.
Need A Quote On DIN 1478 Pipe Turnbuckle
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