

Wimmer W-Lock Quick Couplers
16–140 tonnes
Wimmer's W-Lock quick-change system for excavators from 16 to 140 tonnes: a solid, simple construction with a patented taper locking system, in six sizes from the WL 450 to the WL 1100.
- Economical quick-change technology for all excavator sizes
- Six sizes, WL 450 to WL 1100, for excavators up to 140 tonnes
- Patented taper locking system that is 100% backlash-free
- Hydraulic force reversal, so no jamming
- Safety circuit and constant pressurisation of the locking device
Overview
The W-Lock is Wimmer’s economical quick-change technology, for excavators of all sizes up to 140 tonnes. It comes in six sizes, from the WL 450 to the WL 1100. Exc@v8 supplies Wimmer in the UK.
Simple, solid construction
The W-Lock is a solid, simple construction. Attachment tools can be reversed, so a bucket can be turned round.
Locking
The W-Lock uses a patented taper locking system (Patent No. US 7,198,451 B2), which is 100% backlash-free. Hydraulic force reversal means the coupler cannot jam, and there is a safety circuit with constant pressurisation of the locking device.
Choosing a size
Pick the size by excavator weight. The table below gives each size’s approximate dead weight and the excavator weight it is for: the WL 450 for 16 to 24 tonnes, the WL 550 for 24 to 38 tonnes, and the larger sizes for excavators up to 50, 75, 120 and 140 tonnes. If you are not sure which size fits your machine, call us or use the form below.
Sizes in this range
| Designation | Dead weight, approx. (kg) | Excavator weight (t) |
|---|---|---|
| WL 450 | 280 | 16–24 |
| WL 550 | 400 | 24–38 |
| WL 650 | 700 | up to 50 |
| WL 750 | 1200 | up to 75 |
| WL 1000 | 2200 | up to 120 |
| WL 1100 | 2800 | up to 140 |
Quick answers
What size excavator is the W-Lock for? Excavators from 16 tonnes up to 140 tonnes, depending on the size, from the WL 450 to the WL 1100.
Can I reverse the bucket? Yes. Reversal of attachment tools (bucket reversal) is possible with the W-Lock.
How does it lock? With a patented taper locking system that is 100% backlash-free, backed by hydraulic force reversal and a safety circuit.
Can I buy the W-Lock in the UK? Yes. Exc@v8 supplies Wimmer products in the UK. Use the form below or call us for pricing and availability.