FAQ

For mechanically operated lift tables, a complete inspection must be carried out at least every 12 months by the supplier or another expert. JEMA LIFT of course offers to carry out the mandatory inspection for you.

Each day, prior to use, the lift table must be checked by the user to ensure that the table's security features are working and that there are no visible flaws

During maintenance, repair, or cleaning under the lift table, the table must be safely secured in a lifted position with a proper blocking device. There must be a sign advising of the maintenance.

A lift table can be designed so that it can be collapsed for ease of maintenance and inspection. Such a collapsible table must be securely held in its open position.

Before you choose your lift table, it's a good idea to read the guidelines here:

Lift tables must be designed for use, adjustment, and maintenance so that the user or others are not endangered.  The lift table must be provided with instructions for use and clearly labelled with vendor information. As necessary, information from the instruction manual must be available on the lift table. 

The manual controls must operate in such a way that movement stops immediately when the control is released (dead man's switch function).

Manual controls must be located or designed in such a way that accidental adjustment is prevented. For example, push buttons must be recessed or fitted with a collar. Pedals must have covers.

The manual control functions must be indicated with readily understandable symbols or text in English.

Fixed lift tables must be fitted with one or more emergency stops that terminate all functions.

An emergency stop must be visible and easily accessible for operation and designed so that the lift table cannot be started until the relevant emergency stop is reset.

Portable lift tables with wheels must have brakes or other blocking devices for the wheels.

A portable lift table for horizontal transport of goods must be fitted with a fixed handle or a bracket about 1m above the floor and with a clearance to the lift table edge of at least 100 mm.

Brakes or blocking devices for the wheels must be operable by the operator in a standing position.

The table and chassis edges should be painted with black-yellow or red-white warning stripes.

Pinch hazards between scissor arms must be prevented as follows:

Distance from the table and the bottom frame edge and into the scissor arms must be at least 50 mm. Distance between the individual arms must be at least 30 mm.

Prevent pinch hazards between scissor arms as follows: 

Either there must be a touch sensitive trim all the way around that, when touched, stops movement before the trim has reached its endpoint, or there must always be a free distance under the table's edge of at least 120 mm. The lift table must be clearly labelled with the maximum permissible load in kg.

Lift tables lift material to a suitable height for a work process. They can be fixed or transportable. The load is usually moved hydraulically, either directly using one or more hydraulic pistons, or indirectly using scissor arms. Another way to use a lift table is as a fixed lift platform or elevator; the lift table elevates materials or people from one level to another.

In addition, lift tables can be used as part of the workplace design so that employees' work environment is optimized.

Lift tables are heavily used in car dealerships, where the lift table elevates cars from ground level to the first floor, just as a lift table can handle the task of lifting a pallet of paper from the pavement to your print shop on the first floor. Automated parking garages where cars are automatically parked for clients are another of a lift table’s possible uses.

Lift tables must comply with occupational safety and health legislation provisions for technical aids. All JEMA LIFT lift tables do this.

During use, the lift table must stand on a horizontal and solid base capable of supporting the required load. If it is fixed in place, it should be fastened firmly to the base. If it is fitted with wheels, they must be braked or otherwise properly blocked.

Freight must be properly placed on the table so that it cannot tip over or fall down, and the maximum allowable load must not be exceeded. This load can be specified as a SWL (Safe Working Load) or WLL (Working Load Limit).

Horizontal transport of freight on lift tables may be done only with the table completely lowered.

During transport, the freight should not extend beyond the table's edges.

Security related parts and other protective equipment may not be removed during use.

With firmly fixed lift tables, be sure to observe the minimum clearance of at least 0.5 metres, up to a height of 2.1 metres, and ensure that there is no stacked freight around the lift table closer than 0.5 metres from the platform's free edges. If this limit cannot be met, the lift table workspace must be barricaded, or pinch hazards must be neutralized in another equally secure manner.

A tool must be taken out of service in an appropriately responsible manner as soon as a fault or damage is observed that could result in accidents or health hazards. The same applies in the event of circumstances causing the base of the tool's workspace to become unstable or incapable of supporting the load satisfactorily, or causing the service, monitoring, or control parts affecting affect the tool's safety to cease functioning as intended.

Safety:

The instructions must always be kept on or near the lift table.  If the instructions are not kept on the lift table, it should be indicated stated where the instructions are stored.

Stroke is the lift table's total movement. That is, the possible height difference from lowest to highest position.

A lift table's lifting capacity is based on distributed loads over the whole tabletop. If there is point-load either sideways or lengthwise, the lift table lifting capacity will be lower. As a rule, a lift table can handle 50% load over one half of the tabletop on its length, while it can handle 1/3 load on one half of its side. A lift table’s lifting capacity must never be exceeded.

Yes. But it usually requires a larger hydraulic pump and motor. The larger the pump and motor, the greater the flow in the hydraulics and therefore the greater the raise speed. For speeds above 0.1 metre per second, some kind of variable pump must usually be used.

Yes. JEMA LIFT can provide a lift table for any task. Special tables are usually built out of modules from standard tables, but we also make a great deal of lift tables that are built 100% according to the customer's needs. We excel at customer-specific solutions, and it is not as expensive as you might think.

Very long lift tables with relatively low lift height are usually built using several scissors in extension of each other. The scissors are mechanically synchronized and lift identically and stably to all heights.

Yes. Basically, our lacquered surfaces are strong and of high quality, but for the best finish and durability, we recommend a galvanized solution. 

Yes. Our lift tables are used in all industries, often in fully automatic installations. Our standard control system has inputs from PLC, so it is very easy to integrate a lift table in another system.

A JEMA lift table is made with arms of profiled steel and with high-quality hydraulics. The lift table is therefore very stable. At full load compared to no load, however, you must expect that the lift table will sway a bit, typically, around 1-2 cm.

Lift tables are subject to the rules of mandatory inspections (AT instruction No. 2.3.0.2 of May 1996, among others). Normal lift tables must have service and control inspections performed every 12 months. Freight and passenger lifts must be serviced multiple times per year. JEMA LIFT has a service department and offers this service throughout the country.