Question 1

How does the Uni-Lok hydraulic system improve safety?

Accepted Answer

Uni-Lok allows operators to change attachments without leaving the cab, eliminating exposure to site hazards. The fail-safe design features a mechanical lock that engages if hydraulic pressure is lost, visual lock indicators provide clear confirmation of attachment security, and the one-switch operation minimizes operator error.

Question 2

What tonnage ranges are available for the Uni-Lok?

Accepted Answer

Uni-Lok hydraulic quick hitches are available for excavators from 0.75 to 14 tonnes. Each model is optimized with appropriate hydraulic cylinders and locking force for its tonnage class.

Question 3

Is Uni-Lok compatible with my excavator's hydraulics?

Accepted Answer

Uni-Lok works with standard auxiliary hydraulics found on most modern excavators. It's compatible with all major brands including JCB, Kubota, Caterpillar, Komatsu, Hitachi, and Volvo. Our technical team can advise on specific hydraulic requirements and retrofit options.

Question 4

What happens if hydraulic pressure is lost?

Accepted Answer

Uni-Lok features a fail-safe mechanical lock that automatically engages if hydraulic pressure is lost, keeping the attachment securely locked in place. This ensures the attachment cannot be accidentally released, maintaining safety even in the event of hydraulic failure.

Question 5

What maintenance does the Uni-Lok require?

Accepted Answer

Uni-Lok requires minimal maintenance - regular greasing, hydraulic system checks, and visual inspection. The automatic wear compensation through Harford's wedge system ensures consistent performance over time. Service intervals are typically every 250 hours of operation.

Question 6

How fast can attachments be changed with Uni-Lok?

Accepted Answer

Complete attachment changes can be performed in under 30 seconds from inside the cab. The one-switch operation makes it the fastest method available, significantly improving productivity compared to manual systems.

Question 7

What warranty is included with Uni-Lok?

Accepted Answer

Uni-Lok comes with a 2-year standard warranty covering manufacturing defects. Extended warranty options are available, and we provide comprehensive service support throughout the UK with full technical backup and spare parts availability.

Question 8

Can Uni-Lok be retrofitted with hydraulic controls?

Accepted Answer

Yes, Uni-Lok can be installed on machines with auxiliary hydraulics. We can provide complete retrofit kits including hydraulic hoses, control switches, and installation instructions. Professional installation services are also available.

Uni-Lok® Double Locking Hydraulic Quick Hitch

Ultimate Convenience & Performance

Available Tonnage Classes

Performance That Delivers Results

Technical Specifications & Features

Technical Specifications

Physical Specifications

Performance Specifications

Frequently Asked Questions

Related Products

Safelock Zero-Tool Quick Hitch

Pro-Lok Manual Quick Hitch

Hydraulic Attachments

Advantages of Owning a Harford Hydraulic Coupler

Transform Your Productivity with Hydraulic Operation