Final Assembly Studs

Assembly fittings for manual final assembly of the FI-FK series allow final assembly of cutting rings on tube ends with maximum precision, reliability and process reliability. They are available in the Extra-Light, Light and Heavy Series series as per ISO 8434-1 / DIN 2353. Hardened and wear-resistant. For tube connectors and cutting ring fittings from the STAUFF Connect series made of steel with 24° internal taper. For hydraulics.

 

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(Port 1) Tube Outer Diameter / Series

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23 Results
STAUFF Material Description
STAUFF Material No.
FI-FK-15L-HR
6030011270
STAUFF Material Description
STAUFF Material No.
FI-FK-15L-HR
6030011270
STAUFF Material Description
STAUFF Material No.
FI-FK-16S-HR
6030011281
STAUFF Material Description
STAUFF Material No.
FI-FK-16S-HR
6030011281
STAUFF Material Description
STAUFF Material No.
FI-FK-18L-HR
6030011271
STAUFF Material Description
STAUFF Material No.
FI-FK-18L-HR
6030011271
STAUFF Material Description
STAUFF Material No.
FI-FK-20S-HR
6030011282
STAUFF Material Description
STAUFF Material No.
FI-FK-20S-HR
6030011282
STAUFF Material Description
STAUFF Material No.
FI-FK-22L-HR
6030011272
STAUFF Material Description
STAUFF Material No.
FI-FK-22L-HR
6030011272
STAUFF Material Description
STAUFF Material No.
FI-FK-25S-HR
6030011283
STAUFF Material Description
STAUFF Material No.
FI-FK-25S-HR
6030011283
STAUFF Material Description
STAUFF Material No.
FI-FK-28L-HR
6030011273
STAUFF Material Description
STAUFF Material No.
FI-FK-28L-HR
6030011273
STAUFF Material Description
STAUFF Material No.
FI-FK-30S-HR
6030011284
STAUFF Material Description
STAUFF Material No.
FI-FK-30S-HR
6030011284
STAUFF Material Description
STAUFF Material No.
FI-FK-35L-HR
6030011274
STAUFF Material Description
STAUFF Material No.
FI-FK-35L-HR
6030011274
STAUFF Material Description
STAUFF Material No.
FI-FK-38S-HR
6030011285
STAUFF Material Description
STAUFF Material No.
FI-FK-38S-HR
6030011285
STAUFF Material Description
STAUFF Material No.
FI-FK-42L-HR
6030011275
STAUFF Material Description
STAUFF Material No.
FI-FK-42L-HR
6030011275

You have a regular demand for pipework equipment and hydraulic components and you are looking for individual pricing for our product range, please contact STAUFF.

Final assembly studs for cutting ring fittings from STAUFF

The FI-FK series pre-assembled fittings enable the manual final assembly of Cutting Rings onto Tube Ends with the highest levels of precision, reliability and process safety. The assembly sleeves are designed for STAUFF Connect tube fittings and steel Cutting Ring connectors with a 24° Inner Cone and are available in the LL (extra-light), L (light) and S (heavy) series. The hardened version ensures high wear resistance and a long service life in daily use.

Pre-assembled fittings for secure cutting ring assembly

The pre-assembled sockets in the FI-FK series are designed for the controlled and reproducible fitting of Cutting Rings onto pipes. The precisely matched geometry ensures that the Cutting Ring reaches its intended position, thereby creating the conditions for a permanently secure pipe connection.

The use of pre-assembled fittings helps to prevent installation errors and increase process reliability during the manufacture of hydraulic piping systems. Particularly in applications involving high pressure loads, the correct installation of cutting rings is crucial for the operational safety of the entire system.

Standard solution for manual pre-assembly

The FI-FK series is the recommended assembly solution for the manual final assembly of Cutting Rings within the STAUFF Connect range. It facilitates safe, reproducible and process-stable assembly, thereby meeting the requirements of modern hydraulic applications.

As it is available in the LL, L and S series in accordance with ISO 8434-1 / DIN 2353, it covers virtually every standard pipe dimension within the cutting ring range.

FI-FK as a replacement for FI-VK pre-assembled fittings

The FI-VK series pre-assembled fittings previously available were withdrawn from the range during 2026. The FI-FK series is now available as the standard solution.

Customers who have previously used FI-VK pre-assembled fittings will find the FI-FK pre-assembled fittings to be a technically proven alternative for fitting Cutting Rings to Tube Ends. Focusing on a standardised fitting solution reduces the complexity of the product range whilst supporting the safe and reproducible installation of STAUFF Connect series cutting ring fittings.

Anyone looking for FI-VK pre-assembled fittings will find the FI-FK series to be the current and recommended solution for manual cutting ring assembly.

Seal material and design

The FI-FK pre-assembled fittings are manufactured from hardened Steel and supplied uncoated. The robust design ensures high resistance to wear, even with regular use in the manufacture and maintenance of hydraulic piping systems.

Areas of application

FI-FK pre-assembled fittings are used in hydraulic workshops, assembly halls and for mobile service and maintenance operations. They enable the manual assembly of cutting ring fittings during the manufacture, maintenance and repair of hydraulic machinery and systems.

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FAQs on pre-assembled fittings

What is a pre-assembly fitting?

What is the FI-FK pre-assembly tool used for?

Can an FI-FK replace an FI-VK pre-assembly sleeve?

For which series are FI-FK pre-assembled fittings available?

What material are FI-FK ready-to-fit sockets made of?

For which connectors are FI-FK ready-to-fit adaptors suitable?

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