1) Purpose of equipment
This test machine use for seat front edge progress durability and backrest test mechanism on to single
and multiple seat chair based on BS EN1728:2012
2)Standard :
1 .Seat front edge durability test ( BS EN 1728:2012 , Clause 6.18)
2. Durability test on seating with a multi-position back rest (BS EN 1728 : 2012, Clause 6.18 )
Quantity required
Two units – for multiple seat chair
3. Technical specifications
· This machine was designed for apply vertical load for 2 point on seat chair as alternate,
orientation cylinder also can lined for application of 90˚ load onto seat backup
· Machine structure.
- Frame size: 1.8 meter X 2 meter X 1.5 meter
- Vertical post:
Quantity: One unit
Material: GI, hollow steel 100mm X 100mm X 5mm thickness or rectangular Hollow or square hollow (60mm X 60mm)
Height: 1500mm Cross bar
Pneumatic cylinder with magnetic switch
Quantity required: Four unit assembled vertically
Adjustable: height, position, angle (0-90˚)
Type of cylinder: Double-acting cylinder
Load cell
- Type: compact size, compression, s-type load cell
- Rated capacity: maximum 200kgf (500lb.f)
- Rated output: 3mV/V (maximum)
- Input resistance: 350 ± 50 Ohms
- Output resistance: 350 ± 3.5 Ohms
- Cable: 5mm dia., 4 core and 3 meter length
Maximum force: 1500N
Air supply requirement: 5 bar (minimum)
- Control panel / console
The control panel is controlling the operation of cylinder. It consists os:-
# Power supply: 240V: 13 Amps: 50Hz
# Force meter: The meter will indicate the actual force applied on the sample on the test sample
# ON/OFF switch: to control electrical supply
# 6-digits electronic predetermined counter (EPC)
Positioning of cylinder
- Both cylinders can be adjusted at X-axis (horizontal) and Y-axis (vertical). For X-axis, adjustment shall be done manually
- Both cylinders orientation can be adjusted at angle 0 to 90˚ degree in Z-axis direction
Loading pad
- Rigid circular object 200mm in diameter the face of which has convex spherical curvature of 300 mm radius with 12 mm edge radius
- Material: Any hard materials such as timber, nylon, or plywood
Construction
- Machine base *Steel frame shall be securely welded, anti-rust, undercoated
Machine mode of operation
- Programmable logic control (PLC) shall be used for controlling the whole of the operation
of test machine. It shall be programmed in fulfill the below requirements(note: touch screen type
not preferred)
- Manual mode
The machine operates on a single cylinder by pressing load on/off button
- Automatic Mode
* Mode 1 – cylinder 1 only
* Mode 2 – cylinder 3 only
* Mode 3 – cylinder 1 and 2 alternate
* Mode 4 – cylinder 3 and 4 alternate
* Mode 5 – cylinder 1, 2, 3, 4 alternate
* Mode 6 – cylinder 1, 2, 3 alternate
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Furniture / Chair Seat Front Edge Test Machine BS EN1728:2012 Images
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