bids are invited for 1 optimizers providing and placing in position optimisers. the construction shall be rigid knock down made out of 0.8 thick crca steel. each configuration have following type of blocks – single static ( ss ) , single last ( sl ) , twin mobile ( tm ) . finish: finish shall be epoxy polyester powder coated thickness of 40 microns. construction: shelf construction shall be made from crca steel 0.8 mm. uniformly distributed load capacity of 100 kg. undercarriage: undercarriage shall have construction in welded frame made of hr sheet 3 mm thick. movement: the movements shall be push-pull configuration. locking: fittings shall be centralized locking arrangement through locking stiffener mounted onto back of single last unit so that it gets locked on channels when all the units are brought together. the recess handle lock is placed at suitable height .the ‘sprocket-chain’ arrangement is covered by a 1 mm thk. crca sheet drive unit cover with dimensions 1202mm x 398mm x 87mm and is fixed onto the side of the body. fixed unit ( sd ) does not have the handle. each units shall have locking knob for manual locking of individual units when a person is using those units. knob shall be rotated to unlock position when units are to be moved. end stoppers shall be provided to prevent derailment.the nuts & bolts are galvanized / blackodized / zn plated. also total no. of loading levels per understructure shall be 15 for sd3. label holder: it is an aluminium extrusion of length 396mm for ld / sd and 796mm for td, fitted on to front cover of body. the paper is 300gsm matt milky white sticker paper, to be inserted into the aluminium extrusion. the length of paper is 394mm for ld / sd and 794mm for td. over that a transparent plastic of corresponding length of 150-200 micron polythene is to be inserted. rail pair: it consists of ‘c’ section 2 mm thk hr sheet & square 25.4mm x 2mm thk erw tube – both connected by screws. prior to the grouting of the guide channels with the help of raul plug & screw, ensure the ground is level. the rail channels are of 3 lengths i.e., 800mm, 1600mm and 2400mm. all the dimensions will be as per the original manufacturers specifications. the product should be complete as per approved sample and as per the direction of engineer-in-charge. 1 bay single static push / pull type unit of size -: 1200 w mm x 400 d mm x 1900 h mm 2 1 bay single last push / pull type unit of size -: 1200 w mm x 400 d mm x 1900 h mm 2 1 bay twin mobile push / pull type unit of size -: 1200 w mm x 800 d mm x 1900 h mm 6 rail pair 2400 l mm 2 rail pair 1600 l mm ( q3 ) mse total quantity : 1