By Extension Type

Over Extension Telescopic Slides

Super extension slides travel further than their own closed length — around 150 % and more — to bring a load completely clear of the cabinet or vehicle.

≈150 %+Extension
2,000+ kgPer extended pair
4Materials
STEPFree per length

Products in this range

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

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ADDTS-50 | 34 – 80 KgADDTS-50 | 34 – 80 Kg
In Stock
Aluminum Super Extension

ADDTS-50 | 34 – 80 Kg

The Professional Range of heavy duty telescopic slides manufactured from 6082 T6 aluminium beams with…

Load Capacity 34–80 kg
Length 200–1200 mm
Width 60 mm
View Details
DDTS-110 | 200 – 840 KgDDTS-110 | 200 – 840 Kg
In Stock
Steel C45 Super Extension

DDTS-110 | 200 – 840 Kg

The DDTS range of slides offer a super extension of 200% as standard. Utilising heavy duty ‘I’ beams the…

Load Capacity 200–840 kg
Length 300–2200 mm
Width 88 mm
View Details
DDTS-120 | 300 – 890 KgDDTS-120 | 300 – 890 Kg
In Stock
Steel C45 Super Extension

DDTS-120 | 300 – 890 Kg

The DDTS range of slides offer a super extension of 200% as standard. Utilising heavy duty ‘I’ beams the…

Load Capacity 300–890 kg
Length 300–2200 mm
Width 88 mm
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DDTS-150 | 160 – 1540 KgDDTS-150 | 160 – 1540 Kg
In Stock
Steel C45 Super Extension

DDTS-150 | 160 – 1540 Kg

The DDTS range of slides offer a super extension of 200% as standard. Utilising heavy duty ‘I’ beams the…

Load Capacity 160–1540 kg
Length 300–2500 mm
Width 110 mm
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DDTS-35 | 20 – 100 KgDDTS-35 | 20 – 100 Kg
In Stock
Steel C45 Super Extension

DDTS-35 | 20 – 100 Kg

The DDTS range of slides offer a super extension of 200% as standard. Utilising heavy duty ‘I’ beams the…

Load Capacity 20–100 kg
Length 150–1000 mm
Width 36 mm
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DDTS-40 | 80 – 160 KgDDTS-40 | 80 – 160 Kg
In Stock
Steel C45 Super Extension

DDTS-40 | 80 – 160 Kg

The DDTS range of slides offer a super extension of 200% as standard. Utilising heavy duty ‘I’ beams the…

Load Capacity 80–160 kg
Length 200–1200 mm
Width 48 mm
View Details
DDTS-45 | 15 – 80 KgDDTS-45 | 15 – 80 Kg
In Stock
Steel C45 Super Extension

DDTS-45 | 15 – 80 Kg

The DDTS range of slides offer a super extension of 200% as standard. Utilising heavy duty ‘I’ beams the…

Load Capacity 15–80 kg
Length 150–1000 mm
Width 26 mm
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DDTS-48 | 20 – 90 KgDDTS-48 | 20 – 90 Kg
In Stock
Steel C45 Super Extension

DDTS-48 | 20 – 90 Kg

The DDTS range of slides offer a super extension of 200% as standard. Utilising heavy duty ‘I’ beams the…

Load Capacity 20–90 kg
Length 150–1000 mm
Width 34 mm
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DDTS-50 | 100 – 240 KgDDTS-50 | 100 – 240 Kg
In Stock
Steel C45 Super Extension

DDTS-50 | 100 – 240 Kg

The DDTS range of slides offer a super extension of 200% as standard. Utilising heavy duty ‘I’ beams the…

Load Capacity 100–240 kg
Length 200–1600 mm
Width 60 mm
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DDTS-60 | 70 – 320 KgDDTS-60 | 70 – 320 Kg
In Stock
Steel C45 Super Extension

DDTS-60 | 70 – 320 Kg

The DDTS range of slides offer a super extension of 200% as standard. Utilising heavy duty ‘I’ beams the…

Load Capacity 70–320 kg
Length 200–2000 mm
Width 60 mm
View Details
DDTS-70 | 120 – 410 KgDDTS-70 | 120 – 410 Kg
In Stock
Steel C45 Super Extension

DDTS-70 | 120 – 410 Kg

The DDTS range of slides offer a super extension of 200% as standard. Utilising heavy duty ‘I’ beams the…

Load Capacity 120–410 kg
Length 200–2000 mm
Width 64 mm
View Details
01

What over extension means

Over-extension (also called super extension) slides use an additional stage so the moving member travels beyond the front of the cabinet. This is needed when the load must be lifted from above, reached around a frame, or pulled completely out of a vehicle body.

02

Heavy loads at long travel

Because the load sits far outside the mounting, over-extension slides must be designed for stiffness. FEDS builds heavy duty and super extension systems including configurations that carry more than 2,000 kg per extended pair, depending on the product and installation conditions.

03

Typical applications

  • Battery and equipment drawers in vehicles and rail cars
  • Tool and generator trays in emergency vehicles
  • Loading trays that must be accessed from above
  • Machinery and test equipment
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Frequently Asked Questions

How much does an over extension slide open?

Typically around 150 % of its closed length or more, depending on the design.

What is the difference between super extension and over extension?

Both terms describe slides that travel beyond 100 % of their closed length. FEDS uses "super extension" in its catalogue.

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