Wimmer A-Lock Quick Couplers
12+ tonnes
Wimmer's A-Lock hydraulic quick coupler system for excavators of 12 tonnes and up, in mechanical, compact and tunnel versions, with two-handed operation and audible and visual locking control on the compact and tunnel versions.
- Mechanical, compact and tunnel versions
- Classes for excavators from 12 tonnes to 40 tonnes and over
- Compact and tunnel versions: two-handed operation with audible and visual locking control
- Compact version has a single moving part
- SUVA type examination certificate no. E 7264 (compact and tunnel versions)
Overview
The A-Lock is Wimmer’s hydraulic quick coupler system for excavators. Wimmer introduced the A-Lock in 1985, under company founder Alois Wimmer, as the first hydraulic quick coupler system on the market. It is offered in three versions and three weight classes. Exc@v8 supplies Wimmer in the UK.
Three versions
A-Lock mechanical is for excavators without hydraulics on the boom. It is simple mechanics for a quick tool change, and it can be converted to the hydraulic A-Lock Compact Plus.
A-Lock compact is operated with two hands, with audible and visual locking control. It has only one moving part, for maximum safety and reliability.
A-Lock Tunnel has a sealed excavator mount, with the same two-handed operation and audible and visual locking control. Wimmer’s A-Lock data sheet, available to download below, covers the tunnel couplers.
Certification
The compact and tunnel versions are certified by SUVA and comply with SUVA type examination certificate no. E 7264.
Choosing a class
The A-Lock comes in three classes by excavator weight: KL 3 for 12 to 24 tonnes, KL 3 Combi for 24 to 38 tonnes, and KL T5 for excavators of 40 tonnes and up. Tools are interchangeable within the KL 3 and KL 3 Combi classes. If you are not sure which class fits your machine, call us or use the form below.
Sizes in this range
| Designation | Excavator weight (t) |
|---|---|
| KL 3 | 12–24 |
| KL 3 Combi | 24–38 |
| KL T5 | 40 and up |
Quick answers
What size excavator is the A-Lock for? Excavators from 12 tonnes upwards, depending on the class: KL 3 for 12 to 24 tonnes, KL 3 Combi for 24 to 38 tonnes and KL T5 for 40 tonnes and up.
Can I use the same tools on different classes? Tools are interchangeable within the KL 3 and KL 3 Combi classes.
Is there a version for excavators without hydraulics on the boom? Yes. The A-Lock mechanical is for excavators without hydraulics on the boom, and it can be converted to the hydraulic A-Lock Compact Plus.
Can I buy the A-Lock in the UK? Yes. Exc@v8 supplies Wimmer products in the UK. Use the form below or call us for pricing and availability.