Safety+ for Tail Lift Scheme

Video (Chinese only)

Tail Lift Automatic Tripping System (ATS)

A tail lift (also called a mobile dock leveler) is a mechanical device permanently fitted to the back of van or lorry. The tail lift facilitates the workers to load or unload goods. However, unsafe operation of tail lifts can cause trapping injuries or even death. In the past few years, there were several serious accidents caused by the operation of tail lift, including

  • Body of operators trapped by the tail lift when tail lift is closing.


Hong Kong Productivity Council (HKPC) proposed a Tail Lift Automatic Tripping System (ATS) to reduce the chance of injury. The system is composed of:

  • Tripping Device - It is a laser scanner to detect the obstruct when the tail lift is closing, and stop the operation of tail lift once emergency occurs
  • Additionally, tail lift trucks transporting Class 2, 3, or 3A dangerous goods need to be equipped with flame/explosion-proof devices on the tactile apparatus. These devices must have IECEx (explosion-proof certification) and meet the requirements of the Hong Kong Fire Services Department, including the following:
    1. Explosion-proof certified control boxes that can fully isolate any electronic components that may generate sparks.
    2. Wires must be highly insulated and resistant to wear, with plastic-coated metal conduits connected to the control box.
    3. Wires must be highly insulated and resistant to wear, with plastic-coated metal conduits connected to the control box.
Service Details

HKPC provides consultancy service about ATS installation to the industry.

  1. HKPC will conduct on-site assessment to assess if the contractor is qualified to install different version of the ATS including laser scanner, Infrared sensor, AI camera and with Explosion Proof Enclosure. The qualified contractors will be listed in "List of participating contractors" which will be shown in HKPC website for public inspection.
  2. When the ATS installation is complete, HKPC will conduct on-site inspection to inspect if the ATS meet the relevant requirements. Upon successful testing, HKPC will issue a label to the truck. This label proves that the ATS of the truck is inspected by HKPC and meets the relevantrequirements.

If you have any enquiries, please contact hotline of Safety+ for Tail Lift Scheme, Tel: 2788 5309 or Email: stl@hkpc.org.

Other Reference Materials

For the details of the ATS, please refer to the following links:

Introduction of "SAFETY+ for Tail Lift" and guidance notes for supplier (Chinese only)

Reference drawing of two-hand control device
(Suitable for detection method with laser scanners, infrared sensors, AI camera and with Explosion Proof Enclosure versions of the ATS)

Reference drawing
Wiring diagram
Component list

Wiring diagram of control box

Wiring diagram

PCB layout
Component list

Schematic diagram of the infrared adapter circuit
(If the IR sensor version of the ATS is used, an IR sensor adapter circuit board is required)

Wiring diagram
Explosion Proof Enclosure installation guideline
IECEx Certificate (Explosion Proof Enclosure)

List of Participating Contractors and Vehicles

List of participating contractors (5 safety devices)(Chinese only)
(Last update: 3 August 2023)
List of participating contractors (6 safety devices)(Chinese only)
(Last update: 11 April 2023)
List of vehicles with ATS label (5 safety devices)(Chinese only)
(Last update: 23 January 2025)
List of vehicles with ATS label (6 safety devices)(Chinese only)
(Last update: 23 January 2025)

Disclaimer

This Label only certifies that this tail lift truck has installed the necessary safety devices which are inspected and verified by HKPC in compliance with the requirements of "Guidance Notes on Prevention of Tripping Hazard of Tail Lifts" issued by the Labour Department. This Label does not reduce, limit, or replace, any legal obligations upon any person to comply with any statutory duties under relevant legislation. Tail lift truck owner or user (e.g. driver, tail lift operator and worker) should ensure that the tail lift and the safety device are regularly inspected by a competent person and properly maintained and should check the normal application of the device prior to each use, in order to ensure the safely and efficiently operation of the tail lift. HKPC shall not accept any liability for any loss or damage resulting from the showing of this Label.

Tail Lift Automatic Tripping System (ATS)
Tail Lift Automatic Tripping System (ATS)

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