By Load & Length

Heavy Duty Telescopic Slides up to 3,000 kg

Ball-bearing telescopic slides for loads measured in tonnes — engineered and manufactured in our own factory in Ohrid, North Macedonia, and supplied to OEMs in more than 80 countries.

3,000 kgMax. load rating
12,000 mmMax. opening length
4Engineering materials
ISO9001 · 14001 · 45001

Products in this range

Every product comes with a datasheet and a free STEP file for registered users.

View all in catalogue →
01

What makes a telescopic slide heavy duty

A heavy duty telescopic slide carries hundreds or thousands of kilograms while extending out of its mounting, so the load acts on a long lever. What matters is not only the rated load, but how little the slide deflects at full extension, how it behaves under repeated dynamic loading and how long its raceways last.

FEDS heavy duty slides use solid drawn profiles, hardened running surfaces and precision ball cages. On our C45 steel models the raceways are laser-hardened to 55–62 HRC while the core keeps its toughness — the combination that lets a slide carry high loads for many cycles without wear or play.

02

Load classes

Ratings are given per pair of slides, mounted horizontally on edge, at full extension. For side-mounted, bottom-mounted or dynamic applications, ask our engineers for a load and deflection calculation.

Load classTypical useExtension types
up to 300 kgService drawers, cabinets, machine guardsPartial, full
300 – 1,000 kgBattery drawers, tool carts, equipment racksFull, over-extension
1,000 – 2,000 kgRail and vehicle systems, heavy traysFull, over-extension, bidirectional
2,000 – 3,000 kgExtreme duty and custom OEM systemsEngineered to order
03

Partial, full, over-extension and bidirectional

Every load class is available in several extension types. Partial extension slides open to about 75 % of their closed length and are the stiffest option. Full extension slides open 100 % for complete access. Over-extension (super extension) slides reach around 150 % and more, and bidirectional slides extend to both sides of the cabinet.

04

Materials for every environment

  • C45 E+C precision steel — highest load capacity, zinc plated as standard
  • AISI 316L / 1.4404 stainless steel — corrosion resistance for marine, food and outdoor use
  • Duplex stainless steel 1.4462 — the highest strength and pitting resistance for offshore and chemical environments
  • EN-AW 6082 T6 aluminium — low weight for vehicles, robotics and aerospace-related equipment
05

Free STEP files and engineering support

Every catalogue slide comes with a free 3D STEP model — for many series one file per closed length — so you can place the exact part in your assembly. When the catalogue range is not enough, our engineers develop slides to your drawing, with load calculations, FEA and prototypes before serial production.

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Frequently Asked Questions

What is the maximum load of a FEDS heavy duty telescopic slide?

FEDS manufactures telescopic slides with load ratings up to 3,000 kg, and configurations that carry more than 2,000 kg per extended pair, depending on the product and installation conditions.

How long can heavy duty telescopic slides be?

Openings up to 12,000 mm are possible as custom solutions. Standard catalogue slides cover the most common lengths, and profiles up to 3 m are machined in-house.

Are the load ratings per slide or per pair?

Load ratings are given per pair of slides, mounted on edge, at full extension. Mounting orientation and dynamic loads change the usable capacity — ask us for a calculation.

Can I download CAD files?

Yes. STEP files are free for registered users and can be downloaded from each product page or the CAD / STEP library.

Related solutions

Send us your application

Load, travel, installation space and environment — our engineers will recommend the right slide or design one for you.