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how does a hydraulic shock absorber work

KRD10 Hydraulic Vertical Shock Test System

KRD10 series is a full-automatic hydraulic lifting vertical shock testing machine, with the state-of-the-art design, high degree of automation, simple operation and convenient maintenance. Engineers adopt it to test and measure the shock resistance of products or packaging, simulate the shock environment in laboratory to assess the functional reliability and structural integrity in a real impact environment. KRD10 series hydraulic shock test system can perform various types shock waveforms to realize shock energy that the product is subjected to in the actual environment, thereby improving the system or optimizing the structure of the product. This equipment meets standards of MIL-STD-810F and IEC68-2-27.

FEATURES OF KRD10 HYDRAULIC VERTICAL SHOCK TEST SYSTEM


CME is offering different types equipment for mechanical shock testing:


  • Windows OS: full-automatic remote-control interface, the operator only needs to input simple values, integrated IPS-2000 shock control & measuring system can accurately execute the shock test

  • Multi-track Guide Posts: combined with good lubricity and noise free hydraulic balance lifting system to achieve stable shifting

  • Automatic Control of Lifting Height: with high accuracy and good repeatability

  • Adopts the High Strength and Hardness Cast Aluminum Table: which has high first-order resonance frequency, featured with low noise and no clutter

  • Inner Brake Mechanism: to avoid secondary rebound bumps and more stable positioning of the table

  • Shock Waveforms: half-sine waves, post-peak sawtooth waves, or square waves

  • Free-foundation: The shock testing machine comes with a high-performance buffer and vibration isolation device, just put it on the level floor, the installation is convenient

  • One-stop for Measurement & Analysis: various waveform tolerance bands for reference standards are built in the software, users just need to apply and start, customized test report will be generated after the test.

TECHNICAL SPECIFICATIONS OF KRD10 HYDRAULIC VERTICAL SHOCK TEST SYSTEM


ModelKRDKRDKRDKRDKRDKRDKRDKRDKRDKRDKRDKRD
Parameters10-210-510-2510-5010-10010-20010-40010-50010-60010-100010-150010-3000
Rated Load (kg)252550100200400500600100015003000
Table Size (mm)115×115200×200300×300500×500600×600800×600800×8001000×8001000×10001200×10001500×12002000×1500
Peak Acc. (g)Half-sine5~3k5~2k5~1.5k10-75010~60010-45010-40010-30010-30010-25010-15015-100
Post-peak Sawtooth10~20010~10010-50
Trapezoid/15~20015-10015-6015-5030-50
Pulse Duration (ms)Half-sine0.3~400.5~400.6~601.5~602~602.5~603~603.5~604~604.5~606~6011~40
Post-peak Sawtooth3~186~18
Trapezoid/3~186~18
Overall Dimensions (mm)

450×

180×

2100

1000×

900×

2350

1400×

1200×

2300

1600×

1400×

2300

1700×

1500×

2300

1700×

1500×

2300

1900×

1500×

2550

1900×

1500×

2550

1900×

1800×

2550

1900×

1800×

2650

2200×

2100×

2650

2700×

2500×

3000

Weight (kg)2001000180030004000420048005000700080001000015000
PowerNone

Control measurement: 220VAC±10% 50Hz

Oil source: 380VAC±10% 50Hz

Standards

MIL-STD-810F IEC68-2-27 UN38.3 IEC62281 IEC62133-2 UL2054 IEEE1625

SAEJ2929 IEC62660-2 ISO12405-3 UL2580


TABLE OF KRD10 HYDRAULIC VERTICAL SHOCK TEST SYSTEM

The basic body of the shock tester table is KRD10 series hydraulic lifting vertical shock tester, which is a free-falling vertical shock tester with hydraulic lifting and hydraulic braking. It is composed of shock table body, hydraulic source, electrical control, etc.


The table platform includes: working table, two guide rods, frame, air spring support system, lifting cylinder, displacement sensor, damper, hydraulic locking mechanism, etc.


The shock table adopts hydraulic drive, lifting cylinder lifting, high-pressure oil brake positioning, free fall, high-pressure oil-liquid brake to prevent secondary impact. The structure schematic diagram and pictures are shown in following figure:

TABLE OF KRD10 HYDRAULIC VERTICAL SHOCK TEST SYSTEM

DUAL MASS SHOCK AMPLIFIER OF KRD10 HYDRAULIC VERTICAL SHOCK TEST SYSTEM

The shock amplifier is a device that uses the rebound energy of the ordinary impact shock table to realize the opposite impact between the servo table and the seat on the amplifier, so that the impact acceleration is multiplied.

DUAL MASS SHOCK AMPLIFIER OF KRD10 HYDRAULIC VERTICAL SHOCK TEST SYSTEM

WAVEFORM GENERATORS FOR KRD10 HYDRAULIC VERTICAL SHOCK TEST SYSTEM

KRD10 hydraulic shock test system is equipped with a half sine wave generator. The half-sine wave generator is mainly made of engineering rubber (considering the stiffness and cohesive force of rubber) and felt pads of various thicknesses. Different thicknesses are connected in series to form multiple stiffnesses to achieve different shock pulse widths. Optional for post-peak sawtooth wave generator which is lead cone; trapezoidal wave generator air source is high-pressure nitrogen, the pressure range is 1-10MPa, and the overload value can be adjusted between 10-100g, as shown in the following figure:

half sine wave generator
half sine wave generator
post peak sawtooth wave generator
post peak sawtooth wave generator
trapezoidal wave generator
trapezoidal wave generator
Related Shock/Bump Test Machine Applications
CME TECHNOLOGY WELCOMES YOUR ENQUIRY AND FEEDBACK AT ANY TIME!
sales@cmetechnology.com
029-38128695
No.3 Upgrade Demonstration Base, West of Yongchang Rd., High-tech Zone, Xianyang City, Shaanxi Province, 712023 China
Contact CME for More about Testing Equipment
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Related Shock/Bump Test Machine
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No.3 Upgrade Demonstration Base, West of Yongchang Rd., High-tech Zone, Xianyang City, Shaanxi Province, 712023 China
CME TECHNOLOGY WELCOMES YOUR ENQUIRY AND FEEDBACK AT ANY TIME!
Talk to Us
No.3 Upgrade Demonstration Base, West of Yongchang Rd., High-tech Zone, Xianyang City, Shaanxi Province, 712023 China
sales@cmetechnology.com 029-38128695
E-NEWSLETTER
Sign up for CME newsletter and be informed of the latest innovations, product updates and events.