PLM/500/1290/B/G Single Pillar Heavy Duty Platform Lift
This Single Pillar Platform Lift has a Safe Working Load of 500 Kgs and a lift height of 1290mm. The lifting platform was 1000mm square to allow either four trolleys of bins to be loaded or two stacks of trays to be loaded onto the lifting platform. At the upper level, there was a landing plate to allow easy unloading directly onto the mezzanine floor. The Platform Lift is constructed from Grade 304 stainless steel, is fully welded throughout and is designed to be bolted to the floor without the need for a pit. The lifting is accomplished via a motor gearbox mounted at the top of the main column and a 1” Simplex chain.
Safety Guard to BS EN 14120:2015 Safety of Machinery Guards
The safety guard is constructed from 40 x 40 x 3mm stainless steel box section and 2mm stainless steel sheet to meet the requirements of BS EN 14120:2015 Safety of Machinery Guards. This guard will reach to a height of 2200mm above the mezzanine floor level, having a hinged door at each level through which the Platform Lift can be loaded and unloaded. Each door is electrically interlocked to prevent the Platform Lift being operated with a door open and in addition, the doors are mechanically locked closed whilst the Platform Lift is running. Each door may only be opened when the lifting carriage is at the appropriate level.
There will be a pair of hinged guard doors at the bottom of the platform lift and a pair of doors at the mezzanine floor at 90 degrees to each other to allow ingredients to be delivered to all cooking vessels. The inside faces of the safety guard will be fitted with stainless steel sheets to ensure that the wheeled trolleys cannot move off the platform and become jammed.
Platform Lift Electrical Control
This Platform Lift is fitted with an IP65 Stainless Steel Control Panel which is mounted on the safety guard at a convenient position to give good maintenance access under the Provision and Use of Work Equipment Regulation 1998 (PUWER). The control panel incorporates the following controls; Up, Down, Guard Release, Emergency Stop, Cleaning Key Switch and a Reset Facility. There will be a remote Stainless Steel push button station at the upper level incorporating the following controls; Up, Down, Guard Release and Emergency Stop.
Dual Upper and Lower end of travel limit switches are positioned to prevent inadvertent adjustment or damage but are easily adjustable by trained personnel for fine adjustment on site. The platform lift operation is latched so that pressing the respective ‘Up’ or ‘Down’ push buttons once will raise or lower the lift to the other floor level. Each time the Lift Carriage activates the upper limit switch, an electrical actuator will be driven out underneath the lift carriage to support it while it is loaded. Before the lift can move again, the actuator will retract automatically once the down button is pressed.
Platform Lift Cleaning System
This cleaning system will be fitted to the Platform Lift during manufacture to allow access to the floor beneath the lift carriage for cleaning. The cleaning system will operate as follows:- • The lift frame must be empty, at the full up position and the safety guard gate must be closed
• At the full up position, the lift carriage is prevented from falling by a 50mm support bar driven out beneath the lift carriage using an electrical actuator
• As the bar is engaged, it will alter the state of 2 off separate safety limit switches
• The one switch will disable the platform lifts safety circuit and relay
• The second limit switch will allow the lower safety guard door to be opened providing that the Cleaning Key Switch has been operated
• It is now safe to enter the lift enclosure for cleaning purposes with the platform lift disabled and the lift carriage supported
• Once cleaning is complete, the above sequence is reversed
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