Question 1

What is the Safelock quick hitch?

Accepted Answer

The Safelock is a dedicated quick hitch (quick coupler) manufactured by Harford Attachments in the UK. It allows excavator operators to change buckets and attachments without leaving the cab and without any tools. With over 25,000 units in operation, it is one of the most widely used quick hitches in the UK and is specifically designed for rental and hire fleets where multiple operators use the same machine.

Question 2

How does the Safelock work?

Accepted Answer

The Safelock uses a mechanical locking system that engages automatically when the attachment is picked up. The operator positions the hitch over the attachment pins, and the lock engages under the weight of the coupler. A visual indicator on the hitch confirms the lock is secure. To release, the operator activates the release mechanism from the cab. The entire process requires zero tools and no safety pin, and the spring-free design means there are no springs to fail or maintain.

Question 3

Is the Safelock HSE compliant?

Accepted Answer

Yes, the Safelock fully complies with HSE (Health and Safety Executive) requirements and is certified to EN474-1 standards for excavator quick couplers. Its fail-safe mechanical design exceeds minimum safety requirements, and the visual lock indicator provides clear confirmation of secure attachment. Harford provides full compliance documentation for site audits.

Question 4

What excavator sizes does the Safelock fit?

Accepted Answer

Safelock quick hitches are available for excavators from 0.75 to 9 tonnes, covering mini excavators through to medium-sized machines. The range includes the SL10 (0.75-2 tonnes), SL30 (2-4 tonnes), and SL35 (4-9 tonnes). Each size is engineered for optimal performance within its weight range and is compatible with all major brands including JCB, Kubota, Caterpillar, Hitachi, Volvo, and Takeuchi.

Question 5

What maintenance does the Safelock require?

Accepted Answer

Safelock requires minimal maintenance — just regular greasing and visual inspection. With no springs to wear out or replace, maintenance costs are significantly lower than traditional spring-type quick hitches. Refurbishment kits are available for older units to restore them to like-new condition.

Question 6

What makes Safelock different from other quick hitches?

Accepted Answer

Safelock is the only quick hitch on the market requiring absolutely no tools for operation. Its unique mechanical locking system engages automatically, the spring-free design eliminates common failure points, and it is specifically optimised for rental fleets with cross-brand compatibility. With over 25,000 units in daily operation across the UK, it has a proven track record of reliability.

Safelock® Zero-Tool Quick CouplerDedicated System

Key Benefits

Safelock Hitch Classes

Technical Details & Specifications

Technical Specifications

Physical Specifications

Performance Specifications

Frequently Asked Questions

Safelock Video

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Harford Safelock | Coupler of Choice for Rentals

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