2.207j GB9138-88 Mechanical Concrete Test Hammer

Machinery Concrete Test rebound Hammer

1. Instructions:

ZM3-A resiliometer, in accordance with JGJ/T23-2001 technical regulations, is used for detecting the concrete compressive strength within the range of 10-60Mpa and

Has the system standard energy of 2.207J. The medium-sized resiliometer with pointer direct-reading type indication system is manufactured under the supervision of Shaanxi Architectural Research Design Institute, the chief formulation unit of National Regulations on Measurement and Verification of Concrete Resiliometers (JJG817-93) and the Technical Regulations on Rebound-method Detection of Concrete Compressive Strength, the industry standard.

2. Characteristics:

Light (save 2/3 of labor compared with similar products), flexible, cheap, without power supply, easy to master, buttons difficult to fall off due to pulling process, pointer convenient for adjusting friction force, the first choice of instrument suitable for on-site nondestructive testing.

Main Parameter
Length of pointer: 20.0± 0.2(mm)
Friction force of pointer: 0.65± 0.15(N)
Spherical radius of bounce rod end: 25± 1.0(mm)
Stiffness of bounce tension spring: 785.0± 40.0(N/m)
Decoupling position of bounce hammer: "100" on scale line
Working length of bounce tension spring: 61. 5.0± 0.3(mm)
Impact length of bounce hammer: 75± 0.3
Takeoff position of bounce hammer: "0" on graduated scale
Fixed value of steel anvil: 80± 2 (80-81 for our delivery products)


HONGKONG AUTOSTRONG TECHNOLOGY CO., LTD

HONGKONG AUTOSTRONG TECHNOLOGY CO, . LTD is a high-tech company in Hongkong, who is engaged in research and development, manufacture of test instrument, whose headquater is in Kowloon, Hongkong, with branch offices in Shenzhen.
AUTOSTRONG is one of leading enterprises in Hongkong on R&D and manufacture of testing instruments. We supply standard or customized solutions and products for many test, measurement and quality control tasks required in the world of cable, wire, socket, plug, switch, plastic and rubber testing. All of our products are complying with the requirements of many standards, such as IEC, UL, VDE, VS, JIS, GB and so on.
Products include: Glow wire tester, Needle flame tester, horizontal and vertical burning tester, tracking tester, textile burning tester, protective clothing thermal conductivity tester, automotive interior combustion tester, melt dripping tester, building materials flammability tester, friction tester, test finger, spring hammer, universal testing machinge and other testing instruments.
AUTOSTRONG strategic cooperation with Germany WAZAU, Germany PTL company, Germany FISCHER, Japanese minebea, and on going technical exchange.
AUTOSTRONG spirit: Integration of science and wisdom, quality and service co-exist, face to the world, to achieve a win-win for the supply and demand.