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Modular system with original STAUFF block-style fixing clamps similar to DIN 3015 for the fast, simple and simultaneously secure fastening of pipes, tubes, hoses, cables and other components with outer diameters of up to 42 millimetres – and not just in hydraulics. Full product range. Individual components and clamp sets. Tried and tested over decades. Tested and approved by many international certification bodies.

Heavy Twin Series

Modular system with original STAUFF block-style fixing clamps similar to DIN 3015 for the fast, simple and simultaneously secure fastening of pipes, tubes, hoses, cables and other components with outer diameters of up to 42 millimetres – and not just in hydraulics. Full product range. Individual components and clamp sets. Tried and tested over decades. Tested and approved by many international certification bodies.

Categories

6 Categories
Clamp Kits with Weld Plate (Heavy Twin Series)
Similar to DIN 3015
Mounting Rails (Heavy Twin Series)
Similar to DIN 3015
Hexagon Rail Nuts (Heavy Twin Series)
Similar to DIN 3015
Clamp Bodies (Heavy Twin Series)
Similar to DIN 3015
Weld Plates (Heavy Twin Series)
Similar to DIN 3015
Cover Plates (Heavy Twin Series)
Similar to DIN 3015

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Heavy Twin Series from STAUFF

A perfect combination: Heavy tube clamps in twin design

With the Heavy Twin Series similar to DIN 3015, STAUFF offers a modular system for easy and reliable attaching of tubes, hoses, electric cables, rigid and flexible lines, and other components. The special feature: Two lines with the same or different diameters can be attached with a single clamp, directly adjacent. As a standard, the series covers all common metric and imperial diameters between 6 and 42 mm. This means that the component from the Heavy Twin Series are suitable for applications with medium to particularly high loads on the lines.  

Large selection of clamp bodies

The core of the Heavy Twin Series is formed by the clamp bodies, which consist of two mirrored, i.e. identical, clamp halves. These clamp bodies achieve highly effective vibration damping and noise reduction. This allows STAUFF clamps from this series to make a substantial contribution to preventive health and safety and environmental protection. 

Materials and resistances

The clamp bodies are manufactured from high-quality plastic as a standard and are therefore resistant to UV radiation, weather and chemicals: The materials typically used for this are polypropylene (PP) and polyamide (PA). Flame-retardant materials are also available to meet individual fire protection requirements.  

STAUFF polypropylene clamp bodies are usually green. Black polypropylene clamps are optionally available.

Smooth and ribbed versions

The STAUFF range of standard clamp bodies includes smooth and ribbed versions: 

Clamp bodies with a ribbed inner surface and pre-tensioning are recommended for reliable attaching of tubes. They should preferably be used as a fixed-point clamp, where the tube is clamped between the two halves of the clamp. The outer diameter of the line to be attached corresponds to the inner diameter of the clamp body as shown in the catalogue and on the product itself. The gap between the two clamp halves ensures the appropriate pre-tensioning during attaching. The recommended screw tightening torques and maximum tube retention forces defined in the product catalogue must be observed. 

Clamp bodies with a smooth inner surface and without pre-tensioning (type H) are recommended for reliable attaching of hoses and cables. Smooth inner surfaces and chamfered edges prevent damage to hoses and cables. The outer diameter of the line to be attached corresponds to the inner diameter of the clamp body as shown in the catalogue and on the product itself. The following applies for use as a floating bearing: The inner diameter of the clamp body stated in the catalogue and on the product itself is selected to be marginally larger than the outer diameter of the line to be attached (in accordance with the specific requirements), so that the line is only guided by the clamp body rather than clamped. 

Clamp bodies with elastomer insert (type R) are suitable for noise-reducing and vibration-reducing attaching of tubes and for particularly gentle fastening of hoses and cables. This is a standardised clamp body profile for precision seating of an insert (type RI) made of thermoplastic elastomer or a similar material, typically with a Shore hardness between 55 Shore A and 87 Shore A. 

Weld plates, rail nuts, cover plates and other accessories

STAUFF offers a range of accessories for clamps in the Heavy Twin Series that is unrivalled in its scope, quality and availability.  

This includes weld plates in all available versions, which are used as base plates or ground plates.  

Rail nuts from STAUFF allow the installation of tube clamps, hose clamps and cable clamps on mounting rails and C-rails, which are available in different heights. In contrast to the usual variants using welding or screws, the position of the clamps can easily be adjusted along the mounting rail before final tightening. Clamps can also easily be added or removed later on through the openings in the side of the mounting rail.  

Cover plates are also included in the accessories range. 

In terms of materials, the entire accessories range is available in steel or stainless steel in the qualities V2A 1.4301/1.4305 (AISI 304/303) and V4A 1.4401/1.4571 (AISI 316/316 Ti). The steel variants are supplied with different coatings from the factory (phosphated, plain/uncoated, zinc-nickel coating). The special STAUFF zinc/nickel coating offers reliable corrosion protection that goes far beyond previous market standards – even after transport, processing and assembly of the components. This was confirmed by tests in a salt spray chamber in line with EN ISO 9227. 

Complete clamps consisting of clamp bodies and accessories

In addition to the individual parts, STAUFF also offers complete sets, i.e. clamp combinations from Heavy Twin Series, consisting of clamp bodies and all required fasteners and other assembly accessories: cover plates, weld plates, safety locking plates, rail nuts, channel rail adaptors and bolts. Optionally, these complete clamps can be packaged as sets or delivered pre-assembled.

Buy STAUFF Products Online

Commercial customers and users can use the STAUFF manufacturer shop to purchase and order the products in this category online – quickly, easily, safely, and inexpensively.

STAUFF provides direct access to a comprehensive range of products with more than 50,000 individual standard hydraulic components in 10 product groups for mechanical and plant engineering and for industrial service and maintenance. In addition, STAUFF is also able offer individually designed system and special solutions according to customer's requirements.

The majority of original STAUFF products can be delivered at short notice.

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