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DuraLine Rubber Pads

Bolt-On Rubber Pads

A bolt-on pad bolts through the existing steel track shoe, so it is a semi-permanent conversion rather than one designed to come on and off between jobs. It lets the machine work on asphalt, concrete hardstanding and block paving without damaging them.

Astrak supplies DuraLine and DuraLine Plus bolt-on pads in widths from 400mm to 600mm for excavators from 4 to 26 tonnes, on link pitches of 135mm, 154mm, 171mm and 190mm. Every pad is supplied with its specified bolt torque. DuraLine Plus is the premium range: DuraLine Plus Pads offer 52% more durability than standard pads based on independent abrasion analysis.

Bolts through the existing shoe, with no clamp or bracket on the chain
Widths from 400mm to 600mm, for machines from 4 to 26 tonnes
Torque figures from 85Nm to 435Nm depending on the pad
Next-working-day delivery from stock

Delivery & Fitting

Place your order before 4:30pm and it will be despatched for delivery on the next working day. Bolt-on pads need a predrilled track shoe. DuraTrack shoes are available with a predrilled option, and pads can be fitted at your depot or on site by our nationwide network of approved plant fitters.

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Compare All Pad Styles

DuraLine Plus Bolt-On Sizes & Torques

The pad is set by the machine weight class, the width of the track shoe and the link pitch of the chain. Torque differs by pad, so read it off the row rather than from the last set fitted.

Machine weight	Product code	Pad width	Link pitch	Bolt torque
4T to 6T	DP400/135/B1	400mm	135mm	85Nm
6T to 9T	DP450/154/B2	450mm	154mm	140Nm
9T to 15T	DP500/171/B1	500mm	171mm	215Nm
9T to 15T	DP600/171/B1	600mm	171mm	215Nm
15T to 26T	DP600/190/B1	600mm	190mm	435Nm

Scroll the table sideways to see every column.

Product codes read as width, link pitch, then style: DP600/190/B1 is a 600mm bolt-on pad for a 190mm pitch chain. If your machine is not on this list, send the make, model and shoe width and we will check it against our product reference guide.

Bolt-On, Clip-On or Roadliner?

All three styles do the same job. What separates them is how often the pads have to come off.

Bolt-on, 4 to 26 tonnes, 400mm to 600mm. Bolts through the shoe, with nothing clamped or bracketed on to the chain. A semi-permanent conversion, for machines where the pads stay on.
Clip-on, 9 to 26 tonnes, 500mm to 800mm. A fixed bracket one side and a clamp the other, fitted in half the time of conventional pads, for machines that move between road work and dirt.
Roadliner, 4 to 26 tonnes, 400mm to 600mm. A one-piece vulcanised pad that bolts directly to the chain in place of the shoe.

Bolt-on pads need a predrilled track shoe, because the pad bolts through it. If the shoes are close to their wear limit, fit the pads to new predrilled shoes rather than to shoes due for replacement. DuraTrack triple grouser shoes are supplied from 300mm to 1200mm with a predrilled option, and non-standard sizes for bespoke applications on request.

Whichever style you choose, the chain underneath decides how long the job lasts. A free undercarriage inspection measures chain stretch, rail height and grouser height and reports the wear percentage of each, so pads go onto a chain with life left in it.

DuraLine bolt-on pad with its bolts and track shoe — Bolt-on: bolts through the existing shoe

DuraLine clip-on pad with its clip and clamp — Clip-on: bracket one side, clamp the other

DuraLine Roadliner pad with its bolts and chain link — Roadliner: replaces the shoe on the chain

Stock, Testing and Delivery

Large Stock Availability

Available from stock from 400mm to 600mm, backed by more than £55m of buying power.

Independently Tested

DuraLine Plus Pads offer 52% more durability than standard pads based on independent abrasion analysis.

Fast Delivery

Place your order before 4:30pm and it will be despatched for delivery the next working day.

OEM Specification

DuraLine Plus is the chosen rubber pad for several of the largest global excavator OEMs, and is manufactured to OEM specification in ISO 9001 approved facilities.

BSI certified ISO 9001, ISO 14001, ISO 27001 and ISO 45001

Bolt-On Pad Questions, Answered

What is a bolt-on rubber pad?

A bolt-on rubber pad is a pad that bolts through the existing steel track shoe, converting a steel-tracked machine so it can work on roads, concrete hardstanding and other finished surfaces without damaging them. It is a semi-permanent conversion: unlike a clip-on pad it is not designed to come on and off between jobs.

What sizes do bolt-on pads come in?

Widths run from 400mm to 600mm, covering excavators from 4 to 26 tonnes, on link pitches of 135mm, 154mm, 171mm and 190mm. The product code reads as width, link pitch and style, so DP600/190/B1 is a 600mm bolt-on pad for a 190mm pitch chain.

Do I need predrilled track shoes for bolt-on pads?

Yes. The pad bolts through the shoe, so the holes have to be there. DuraTrack triple grouser track shoes are available with a predrilled option for exactly this reason, in widths from 300mm to 1200mm, so if you are replacing shoes and expect to run pads later it is worth ordering them predrilled.

What torque should bolt-on pads be tightened to?

It depends on the pad. A 400mm pad on a 135mm pitch chain is 85Nm, a 450mm pad on 154mm pitch is 140Nm, 500mm and 600mm pads on 171mm pitch are both 215Nm, and a 600mm pad on 190mm pitch is 435Nm. The figure for your pad is supplied with it, and it is worth reading off rather than assuming from the last set fitted.

Should I choose bolt-on or clip-on pads?

It depends on how often the pads come off and on the machine. Bolt-on is a semi-permanent conversion, so it suits a machine that works on finished surfaces and keeps its pads on. Clip-on pads fit in half the time of conventional pads, which suits a machine moving between road work and dirt. Bolt-on covers 4 to 26 tonnes in 400mm to 600mm; clip-on starts at 9 tonnes and runs 500mm to 800mm. Tell us how the machine is used and we will price both.

How quickly can you deliver bolt-on pads?

Place your order before 4:30pm and it will be despatched for delivery on the next working day. Bolt-on pads are available from stock across the width range, with delivery reliability across the business running at 95% on time in full.

Get a Quote for Bolt-On Pads

Send the machine make, model and track shoe width, and tell us whether the shoes are already predrilled. We confirm the pad width and link pitch against our product reference guide, price it, and despatch from stock.

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Technical advice on pad sizing and shoe drilling comes at no additional cost.

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