SEER Robotics Forklift manual control device (SFL-Handle-ZY)

A forklift that drives itself still needs a way to be moved by hand when the software has run out of ideas. The SEER Robotics Forklift manual control device (SFL-Handle-ZY) is that way: a compact handheld unit that puts a person back in charge of the truck for a few careful moments, with a safety circuit that stays within reach of the operator's thumb.

The product is available through this page, by quotation.

Background

SEER Robotics and its lineage

SEER Robotics is listed in Hong Kong under the code 06106.HK. It is a platform-based embodied intelligent robotics company built around the Robot Brain, and it serves more than 2,500 customers worldwide with intelligent robotics solutions. For a buyer in the Caribbean, that matters in a practical way: a company with a broad installed base has seen many warehouses, ports and factory floors, and its accessories are designed with that range of conditions in mind.

The handheld sold here belongs to the same family of equipment as the autonomous forklifts and controllers the company builds. The source page names it the SEER (Safety) Forklift Handle, and the store lists it as the SEER Robotics Forklift manual control device (SFL-Handle-ZY). Both names point to the same idea: a manual interface whose first job is safety.

Positioning and key technology

The SFL-Handle-ZY is an all-purpose handheld that is compatible with multiple types of vehicle. It is not a joystick built for one chassis. Its control functions cover forward and reverse, left and right steering, lift and lower, tilt forward and backward, reach forward and backward, and fork spacing adjustment, plus a steering analog signal.

Three design decisions define the unit. The first is a dual-channel emergency stop. The second is a 3-position safety enable switch, which is the kind of switch an operator holds in the middle position to keep the vehicle live. The third is an IO interface hard connection, which gives stable and reliable signal transmission between the handheld and the vehicle. Control logic is by I/O signal, so the handle speaks in plain electrical signals rather than depending on a software link that could itself be the thing that has failed.

Technical Specifications

Specifications as published by the manufacturer; confirmed against the datasheet at quotation.

The manufacturer has not published the box contents, the specific compatible forklift models, the button count and layout, the certifications or the storage temperature; they are confirmed at quotation.

Why does a dual-channel emergency stop matter on a handheld?

On a manual control device, the emergency stop is the most important button, and also the one nobody wants to find out is unreliable. A single circuit can fail without anyone noticing. A dual-channel design uses two circuits, so that a fault in one does not leave the operator without a way to stop the truck.

The SFL-Handle-ZY has a reserved dual-circuit emergency stop design that is synchronized with the main control emergency stop function. In plain terms, pressing the stop on the handle and pressing the stop on the vehicle produce the same result, so the operator does not have to wonder which one takes priority. The design is compatible with overseas safety controllers and adaptable to diverse overseas vehicle control requirements. For importers and integrators outside China, that is a relevant point, because safety wiring is often the place where equipment from different origins fails to match.

The 3-position safety enable switch adds a second layer of protection. The operator holds it in the middle position for the vehicle to respond, and in the usual three-position arrangement releasing it or squeezing it fully is treated as a stop condition. That keeps the truck from moving simply because a hand relaxed or tightened in surprise. Together, the enable switch and the emergency stop make the handle quick to use and difficult to misuse.

How does the SFL-Handle-ZY connect and behave in the field?

The connection is deliberately simple. The handheld uses an IO interface hard connection, which gives stable and reliable signal transmission. A wired link has no pairing step, no battery to charge in the handset and no radio environment to worry about. A 2.5 m spiral cable (8.20 ft) lets the operator walk beside the vehicle while the coil takes up slack instead of dragging on the floor. The cable ends in a Cnlinko 24PIN aviation connector, a locking, round industrial plug of the kind chosen for repeated plugging and unplugging.

The switch arrangement pairs self-resetting switches with a potentiometer. Self-resetting switches return to neutral when released, which means an action stops when the operator lets go. The potentiometer gives proportional control where a simple on-off signal would be too abrupt. The handle also provides an additional slot for a steering potentiometer, which gives integrators a choice in how steering is handled, and it outputs a steering analog signal.

As for conditions, the operating temperature is -5℃ to 45℃ (23°F to 113°F) and the operating altitude is up to 1200 m (3937 ft). Buyers who plan to use the handle outdoors or in an unconditioned shed should check their site against those limits.

One of the main purposes of the unit is recovery. When the main control system malfunctions or fails, the handheld steps in quickly and helps the vehicle get out of trouble, so that a stalled truck does not block an aisle while the cause is traced.

Who is the SFL-Handle-ZY for?

Integrators and commissioning teams. Anyone fitting out an autonomous forklift needs a manual way to position the vehicle, test each hydraulic function and check that the emergency stop circuits behave as designed. A single handheld that covers lifting, tilting, reach and fork spacing saves time compared with improvising.

Warehouse and port operators. Sites that run autonomous trucks need a dependable way to move one by hand after a fault. Keeping a handle where the maintenance crew can reach it shortens the time a vehicle is out of service.

Fleet owners with mixed vehicles. Because the handle is built for multiple vehicle types, it suits operators who run more than one kind of truck. Send us your vehicle details and we will advise on the match.

If you are still choosing the vehicle itself, the range includes the SEER Robotics 2000 Kg Counterbalanced Autonomous Forklift (SFL-CPD20-Y) and the SEER Robotics 3000 Kg Counterbalanced Autonomous Forklift (SFL-CPD30-Y). For related electronics, see the Controllers category, and for the wider range of vehicles, the Factory Robots category.

What is the SFL-Handle-ZY used for?

1. Moving a stalled truck. When the main control system fails, the handle helps the vehicle recover and clear the aisle.
2. Commissioning. Engineers test drive, steering, lift and tilt functions one at a time before the vehicle goes into automatic service.
3. Fine fork positioning. Lift, lower, tilt and reach controls let the operator ease the forks into place by hand.
4. Fork spacing adjustment. The operator sets the width of the forks to suit the load being handled.
5. Safety checks. The dual-channel emergency stop and the 3-position enable switch can be exercised as part of a routine inspection.
6. Integration work. The steering potentiometer slot and the steering analog signal give integrators room to configure steering for their own vehicle.

Pricing and Availability

The SFL-Handle-ZY is sold by quotation, and no prices are shown on this page. Tell us the vehicle type, the quantity and the destination, and we will prepare a quotation for you. Delivery, customs and support are arranged with the quotation. The SEER Robotics Forklift manual control device (SFL-Handle-ZY) is available on this page.

Frequently Asked Questions

What size and weight is the handheld?

It measures 204 x 104 x 85 mm (8.03 x 4.09 x 3.35 in) and weighs 1 kg (2.20 lb). It is a compact handheld unit that one person can carry and operate.

Which actions can it control?

It covers forward and reverse, left and right steering, lift and lower, tilt forward and backward, reach forward and backward and fork spacing adjustment. It also provides a steering analog signal.

How is it connected to the vehicle?

It uses an IO interface hard connection with I/O signal control logic. The 2.5 m spiral cable (8.20 ft) ends in a Cnlinko 24PIN aviation connector.

What safety features does it have?

It has a dual-channel emergency stop that is synchronized with the main control emergency stop function, and a 3-position safety enable switch. The design is compatible with overseas safety controllers.

In what conditions can it be used?

The operating temperature is -5℃ to 45℃ (23°F to 113°F), and the operating altitude is up to 1200 m (3937 ft).

Which forklift models does it work with?

It is an all-purpose handheld built for multiple vehicle types. Send us your vehicle details and we will advise you on the match.

Where can I buy the SFL-Handle-ZY and what does it cost?

It is available through this page, by quotation. Request a quotation with your vehicle type and quantity, and we will respond with the commercial terms, which cover delivery, customs and support.

Summary

A truck that drives itself is only as dependable as the means of stopping and moving it by hand. The SFL-Handle-ZY answers that with a compact 1 kg (2.20 lb) handheld, a dual-channel emergency stop, a 3-position safety enable switch, a hard-wired IO connection and coverage of lift, tilt, reach, steering and fork spacing functions. If you want that manual safety net for your fleet, this page is the starting point.