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