bids are invited for electrically operated document destruction equipment capable of processing minimum 8 sheets (70 gsm) simultaneously using cross-cut mechanism producing particle size not exceeding 4 x 35 mm (security level din p-4 or higher). equipped with automatic start/stop sensor, manual reverse function, overload and thermal protection, jam prevention mechanism, enclosed waste collection container of minimum 15-litre capacity, continuous duty cycle of minimum 5 minutes, noise level not exceeding 70 db(a), capable of shredding paper with staples and paper clips. operating voltage: 220-240 vac, 50 hz. power consumption not exceeding 350 w. ce/rohs compliant. manufactured from pre-laminated engineered wood board conforming to is 12823 with board thickness not less than 18 mm and worktop thickness not less than 25 mm. all exposed edges sealed with 2 mm pvc edge banding using hot-melt adhesive technology. work surface finished with abrasion-resistant and moisture-resistant laminate. integrated lockable storage unit with telescopic drawer channels, hinged cabinet and open shelving. structural connectors shall be corrosion-resistant steel hardware. minimum uniformly distributed load carrying capacity 80 kg. dimensions approximately 1200 x 600 x 750 mm. ergonomically designed seating system incorporating pneumatic gas-lift height adjustment conforming to bifma standards. backrest fabricated from breathable high-tensile mesh with integrated lumbar support. seat manufactured using injection-moulded high-density polyurethane foam of density not less than 45 kg/m³. five-star reinforced nylon base fitted with twin-wheel castors. 360° swivel mechanism with tilt-lock and tension adjustment. static load capacity minimum 120 kg. corrosion-resistant powder-coated or chrome-plated metallic components. manual punching and binding equipment capable of accommodating a4/foolscap documents. punching capacity minimum 12 sheets of 70 gsm paper per operation. binding capacity not less than 450 sheets. hardened alloy steel punch pins with disengagement facility. adjustable side guide and punching margin control. heavy-duty steel chassis with anti-skid base. compatible with standard plastic combs or spiral binding elements ranging from 6 mm to 50 mm diameter. fabricated from crca steel sheets conforming to is 513 with body thickness not less than 0.8 mm and door thickness not less than 1.0 mm. electrostatic epoxy-polyester powder-coated finish with minimum coating thickness of 40 microns. four adjustable shelves with load-bearing capacity not less than 40 kg per shelf. three-point locking mechanism with concealed hinges and duplicate keys. corrosion-resistant construction with phosphating pre-treatment. approximate dimensions: 1830 x 910 x 485 mm. line-interactive power conditioning system rated minimum 1000 va/600 w with automatic voltage regulation (avr). input voltage range 140-300 vac without battery operation. output voltage regulation within ±10%. transfer time not exceeding 10 ms. maintenance-free sealed lead-acid battery providing backup of minimum 20 minutes under 50% load. protection against overload, deep discharge, surge, short circuit and battery overcharge. usb communication interface with audible and visual status indications. recharge time less than 8 hours to 90% capacity. operating frequency 50 13 hz. electronic computation device incorporating minimum 12-digit lcd display with dual power source (solar cell and battery). functions shall include memory operations, percentage calculation, tax calculation, grand total, sign change, square root, correction key and automatic power-off. key life minimum 100,000 operations. tilt display preferred. manufactured from impact-resistant abs polymer or equivalent engineering plastic with minimum wall thickness of 2 mm. multiple internal compartments for segregation of writing instruments and accessories. secure locking mechanism or heavy-duty zipper closure. smooth finished edges with scratch-resistant surface. minimum internal storage volume 1 litre. lightweight construction not exceeding 300 g. self-adhesive repositionable paper sheets manufactured from wood-free paper of minimum 70 gsm with pressure-sensitive acrylic adhesive ensuring residue-free removal. standard sheet dimensions 76 x 76 mm. minimum 100 sheets per pad. adhesion shall permit repeated application without significant loss of bonding performance. paper shall be acid-free and compatible with handwriting and printing applications. bright colour assortment preferred.