CategoriesYAW-2000D Hydraulic Concrete Compression Testing Machine
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Function and structure
YAW-2000D computer controlled servo hydraulic concrete compression testing machine is mainly used to various materials compression test. Such as cement, concrete, brick of diverse materials, rubber tray, concrete component, metal component anti-compress strength.
This machine is consisted of load frame, servo oil source, control cabinet, computer and printer etc. It adopts hydraulic load, oil pressure transducer to measure load, auto control the testing process by PC-hydraulic servo system. PC screen display the test data and curve, with data analysis, storage and print function.
The load frame is twin leading screw tower structure, crosshead is connected with leading screw through screw nut. Downside of leading screw is fixed on base by snap ring and screw nut. Motor mounted on crosshead, chain wheel and chain rotate nut, reverse the direction of motor to drive crosshead up and down. Upper platen is joined on crosshead through bolts, press block fixed the oil cylinder at center of base. The piston and working table are connected by bolts, lower platen and sphere base are fixed on working bench by fitting pin. When oil enter into oil cylinder, push piston, working table and lower platen rising, then load force on specimen.
Hydraulic system theory: load adjustable input oil and throttle timing system. Hydraulic oil in the oil box is driven by high pressure gear through motor enter into the oil pipe, flow by single direction valve, high accuracy filter, time difference valve group, servo valve, then enter into oil cylinder. The computer give a signal to servo valve to control it on/off and the direction, then adjust the flux of the oil to cylinder, all of above procedure realize uniform velocity load, relatively displacement etc.
Main specification
|
No. |
Item |
Specification |
|
1 |
Max. capacity (KN) |
2000 |
|
2 |
Measuring range |
4%-100% of FS |
|
3 |
Relative error of reading |
≤±1% |
|
4 |
Uniform velocity stress control range(N/mm²·S¯¹) |
1-10 |
|
5 |
Stress velocity error |
≤±5% |
|
6 |
Max. distance between two platen (mm) |
500 |
|
7 |
Compression platen size (mm) |
250*250 |
|
8 |
Max. piston stroke (mm) |
0-200 |
|
9 |
Max. piston speed (mm/min) |
Approx. 50 |
|
10 |
Column clearance (mm) |
540 |
|
11 |
Oil pump motor power (KW) |
1.5 |
|
12 |
Moving motor power(KW) |
0.75 |
|
13 |
Load frame dimensions (mm) |
1050*650*2100 |
|
14 |
Cabinet dimensions (mm) |
600*480*960 |
|
15 |
Load frame weight (KG) |
Approx. 3500 |
Standard accessories
|
No. |
Item |
Specification |
Quantity |
Remarks |
|
1 |
Load frame |
|
1 set |
|
|
2 |
Oil source control cabinet |
|
1 set |
|
|
3 |
Proportion valve |
|
|
|
|
4 |
Oil pressure transducer |
GYB-12SA |
1 pc |
|
|
5 |
Photoelectric encoder |
|
|
|
|
6 |
Measuring and control system |
|
1 set |
|
|
7 |
Computer |
P4/256MDDR/80G |
1 set |
LENOVO |
|
8 |
Printer |
HP1368(A4,ink jet) |
1 set |
HP |
|
9 |
Upper and lower platen (mm) |
250*250 |
1 set |
|
|
10 |
Tool kits |
|
1 set |
|
|
11 |
Accessoried documents |
|
1 set |
|
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