Other Services

  • On-Site Welding Repairs
  • On-Site Line Boring
  • General Engineering
  • General Fabrication

Hydraulic Cylinders

Repairs on all Hydraulic Cylinders.
Refurbishing on all Hydraulic Cylinders.
Manufacturing on all Hydraulic Cylinders.

We have a wide variety of HiTech, Volvo, CAT, Sumintomo, Bell, Komatsu, Kawazaki and Liebherr Cylinders on Exchange. 

Track Tensioners

We refurbish and repair these components to OEM specifications, with new springs if necessary.

Dipper & Booms

We repair cracks, broken off ears and hoses
We also sandblast and stress relief componnets after major repairs, like lifting new plates, etc. 

Buckets

We manufacture complete new buckets, minor and major repairs for instance new cutting edges, leading edges, wears trips hanger brackets and line boring off bucket holes.

Bushes & Pins

We manufacture harden and ground pins and bushes to OEM specifications. 

A Frames

Straightening on A-frames, weld, line bore and machine damaged bearing areas and also replacement of badly worn bearing hoses.  

H Frames

We weld and line bore all kind of H-frames, back to standard OEM specifications. We also manufacture and fit bushes all to OEM specifications. In some cases we also remove the old torque tube and fit new ones. We also weld and machine badly worn faces with facing attachments tool on site and in-house. 

Other Services

On-Site Line Boring

We do on site line boring both local and cross border. We have fully equipped quantum vans and both are fitted with generators enabling us to work almost anywhere. 

On-Site Welding and Repairs

We got a Lincoln welding, gauging and generator combination machine that allow us to gauge and weld on site, with the correct amps and penetration. required to do proper repairs on site.

General Engineering and Fabrication

We have skilled artist on all our machines that allow us to do almost any fabrication and general engineering that the customer may require.

Track Frames

Service Exchange Dozer

U&L are committed to rebuilding undercarriage related components to
the highest standards that go the distance and provide genuine savings.

To ensure U&L Track frames and components meet our rigorous new parts standards of quality, individual parts are manufactured both globally and locally to OEM specifications. All engineering, assembly and quality assurance is carried out by U&L Engineering and checked by their qualified Engineering Department.

DOZER TRACK FRAME RANGE

We supply all our track frames complete with idlers and rollers on a service exchange basis.

REMAN MODELS

Caterpillar D9, D10 & D11

Komatsu 375 & 475

With a dedicated QA & Engineering department as well as an expertly designed new assembly
area for component builds, U&L Engineering fit U&L approved parts, repair and assemble to strict
standards. Thanks to their innovative production process, our JV track frames are the highest
degree of reliability and value.

U&L supply New and reconditioned track frames and components to many local and international organisations across a variety of mining sectors. We’ve partnered with our clients to create innovative undercarriage solutions which extend wear life and increase productivity through reduced downtime.

TRACK FRAME D10T

TRACK FRAME D11T

OUR ENGINEERING REPAIR PROCESS
01 Strip, clean and assess the condition and scope of work required for the remanufacture/ repair of the track frames. This includes sand blasting and Non-Destructive Testing (NDT).
02 Strip the telescopic section, ensure the condition of the recoil spring.
03 Strip the slack adjuster and assess.
04 Remove and replace the chrome sleeves.
05 Repair, manufacture or supply parts to OE standards and reassemble.
06 Assess all major and minor bogies.
07 Repair all damaged areas. This will include the buildup and restoration of the track guide mounting area, the removal and/or repair of roller and idler cap bolt holes on both major and minor bogies. The line boring and repair of major and minor bogies where bogie pins have collapsed and damaged the bores. All these repairs are done to the highest standards and tolerances.
08 The complete frame is extensively checked for cracks. If found these are repaired and reinforced.
09 The base of the frame where the resilient pads are mounted are given particular attention as this may indicate inner tube cracking. If the case the belly plate is removed, the tube repaired, and a new belly plate fitted.
10 The front sealing area is checked. If damaged this area is pre-machined, built up and machined to original specification.
11 Pivot shaft bores, the split bronze on steal bushes are removed and the bores checked. If not within specification, the holes are built up and line bored to standard.
12 The equalizer bar mounting holes are built up and line bored.
13 U&L has a minimum standard repair parts kit that includes mining quality bogie pins, seals, retaining rings, wear parts, covers, nuts, bolts, guards, resilient pads, guides, plugs, rollingstock caps, rollers and idlers. (This list is available on request)
14 Once all parts are ready, the assembly process starts. A variety of hydraulic equipment and jigs are utilized for the assembly process depending on the size and type of track frame.
01 Special tooling and dies are used to ensure the careful assembly of the bogie system and recoil assembly insertion.