Construction of Musuem CumSeminar Hall Platinum Jubilee Memorial Building at Assembly House Premises Kolkata Supplying fitting and fixing of Chairs in Auditorium

Amount

Supply and installation of audutorium chair : The seat frame assembly shall be ERW Tube / IS :3074-2005 GRADE 1: 19 mm dia Round Pipe 1.2mm Thickness , along with seat sliding option, Seat size shall be: 40.5 cm. (W) x 49 cm (D) x 12.5 cm (T)(Front) & 8 cm(T)(Rear) or with minor variations in dimension. The backrest assembly shall be made of ERW Tube / IS :3074-2005 GRADE 1: 16 mm dia Round Pipe 1.63 mm Thickness & Extra Reinforcement 16 dia round pipe 1.2 mm. The back foam shall be designed with contoured lumbar support for extra comfort at upright and tilted conditions. The back shall be: 46 cm. (W) x 82.3 cm (H) x 10.0 cm (T)(Front) & 5.7cm (T)(Rear). The Automotive grade HR polyurethane foam for Seat and Back shall be moulded with Density = 53 +/- 5kgs/cu.m or 48+/- 2 kgs/cu.m . The back & seat covers are made of injection moulded thermoform PPCP as per IS: 10915-1984 with 43 cm(W)x 75.5 cm(H)x 2.mm(T) for back and 43 cm(W)x 55.2 cm(D)x 2mm(T) for seat. The armrest shall be made up of Polyurathane. . For Push Back mechanism – Spring Steel IS : 4454 1981 GRADE 2. The fluimatic slider travels upto 60mm with metal ball and roller cage which results in PUSH BACK OF 130 + 10mm . Should have flexibility to restrict movement of the pushback and slider as per availability of aisle space. The mechanism houses the seat & back and shall has a special feature of upright resistance lock to avoid activation of sliding feature unless enough force shall be applied by user when tilting shall be required. For Auto Tip-up – Torsion Spring / Spring Steel IS : 4454 1981 GRADE 2 (part i). The chair shall rests on the ground on two Side wing frame with plywood with upholstery. . The side panel frame is to made of HRPO sheet metal as per IS :1079 -1994 standards alongwith fabric upholstered plywood. It shall be grouted to the floor using 2 nos. anchors for each panel through the base plate. All steel components shall be zinc passivated and powder coated (DFT 40-60 microns). Provision for lights on sides for seats along the aisles using PP housing with 12mm watt lamp. Aluminum cut-outs available for row & seat numbering. Specifications may be required to be adjusted as per the requirements of the Competant Authority . The rates should be including all taxes and incidental charges. Approved make : Godrej /Wipro. or similar make.

Supply & Installation of Pushback ,seat slider and auto tip up auditorium chair .The seat frame assembly shall be ERW Tube / IS :3074-2005 GRADE 1: 19 mm dia Round Pipe 1.2mm Thickness . The Seat profile shall be developed to help the users to get necessary comfort in popliteal region and ease of use in forward push for the seat sliding feature.Seat size shall be: 40.5 cm. (W) x 49 cm (D) x 12.5 cm (T)(Front) & 8 cm(T)(Rear) or 45 cm. (W) x 48.5 cm (D) x 14.5 cm (T)(Front) . The backrest assembly shall be made of ERW Tube / IS :3074-2005 GRADE 1: 16 mm dia Round Pipe 1.63 mm Thickness & Extra Reinforcement 16 dia round pipe 1.2 mm. The back foam shall be designed with contoured lumbar support for extra comfort at upright and tilted conditions. The back shall be: 47 cm./47.5cm (W) x 82.3 /80 cm (H) x 11.0/12.5 cm (T)(Front) & 6cm (T)(Rear). The Automotive grade HR polyurethane foam for Seat and Back shall be moulded with Density = 55 +/- 5kgs/cu.m. or 48+/- 2 kgs/cu.m . The back & seat covers are made of injection moulded thermoform PPCP as per IS: 10915-1984 with 45.7 cm(W)x 75.5 cm(H)x 2.3mm(T) for back and 43.5 cm(W)x 55.2 cm(D)x 2.3mm(T) for seat. The armrest shall be made up of Polyurathane/wood with waterfall edge design. . For Push Back mechanism – Coil Spring / Spring Steel IS : 4454 1981 GRADE 2. The fluimatic slider travels upto 60mm with metal ball and roller cage which results in PUSH BACK of 140 + 10mm . . For Auto Tip-up – Torsion Spring / Spring Steel IS : 4454 1981 GRADE 2 (part i). The chair shall rests on the ground on two Side wing frame with plywood with upholstery. Each Leg is a rectangular tube of cross section 50mm X25mm x1.63mm Thickness as per IS:4923-1985 standards . The side panel frame is be of sheet metal as per IS :1079 -1994 standards alongwith fabric upholstered plywood. It shall be grouted to the floor using 2 nos. anchors for each panel through the base plate. All steel components shall be zinc passivated and powder coated (DFT 40-60 microns). Specifications may be required to be adjusted as per the requirements of the Competant Authority . The rates should be including all taxes and incidental charges. Approved make : Godrej /Wipro or similar make.

M. B. ROY

Wipro Enterprises Limited

saryu seating co

Godrej and Boyce Mfg. Co. Ltd.