Hollow Type Cast Iron Surface Plate High Precision Marking Out Repeated Use

Brand Name :

OEM

Certification :

CO, FORM-E

Payment Terms :

Western Union, T/T

Supply Ability :

10/monthd

Delivery Time :

20days

Hollow Type Cast Iron Surface Plate High Precision Marking Out Repeated Use

Cast Surface Plate Marking Out Table

Cast iron Surface Plates and Tables serve as a precision reference base for inspection, tool making, gauging, spotting marking and layout operations. Granite or Cast Iron Surface Plates are supported on suitable stand called Surface Tables Stands enable proper levelling of plate and also provide the top surface at a convenient working height of approx. 850 to 900 mm from the floor.

Salient Features

Made generally as per IS: 2285.
Made from close grained plain cast iron conforming to Grade FG:220 of IS: 210 (equivalent to GG20/ FT20 / 30-A). Higher grades also offered on request.
Castings stress relieved to relieve internal stresses.
Sizes upto 2000 x 1000 mm offered in four Grades of flatness accuracies viz Grades 0, 1, 2 & 3 as stated in table.
Hand scraped surface finish for Grades 0, 1 and 2 flatness accuracies & smooth machined / rough ground / scraped surface finish for Grade 3 flatness accuracies.
Rigidity requirements as per IS: 2285 ensured in case of Surface Plates of Grades 0, 1 and 2 only.
Flatness determination done by grid method as per clause 4.3.1 of IS: 12937 Indian standards on Engineering Metrology "Methods of Testing Straightness, Flatness and Perpendicularity".
Flatness accuracy checked by Electronic level. Computer print out of the contour of top working surface is furnished.
Plates up to 630 x 630 mm provided with handles for lifting. Larger plates provided with cored holes in peripheral ribbing for lifting by mechanical means.
Column type C. I. Floor stands or M.S. Fabricated stands with leveling screws supplied at extra charge, if required.
Special features like grid slots for location, tapped holes and T-slots can be provided on working surface, if required.

Specification Lengthwidththickness(mm)	weight(kgs)	precision Grade(µm)
Specification Lengthwidththickness(mm)	weight(kgs)	000	00	0	1
20020050	17	1.5	3	6	12
30030050	19	1.5	3	6	12
40030070	25	1.5	3	6	12
40040070	48	2	3.5	6.5	13
630400100	76	2	3.5	7	14
630630100	155	2	4	8	16
800500130	156	2	4	8	16
1000630130	284	2.5	4.5	9	18
1000750150	338	2.5	5	9	18
10001000150	450	2.5	5	10	20
10001000200	963	3	6	12	24
20001000100	1200	3.5	6.5	13	26
16001600300	2312	3.5	6.5	13	26
20001600300	2890	3.5	7	14	28
25001600300	3612	4	8	16	32
30002000500	9030	4.5	9	28	36
40002000500	10240	5.5	11	22	44
60002000700	25284	7.5	15	30	60

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