Home ProductsShock Piston Machine

OEM Automatic blow - off and friction testing machine for testing shock absorber piston

OEM Automatic blow - off and friction testing machine for testing shock absorber piston

  • OEM Automatic blow - off and friction testing machine for testing shock absorber piston
  • OEM Automatic blow - off and friction testing machine for testing shock absorber piston
  • OEM Automatic blow - off and friction testing machine for testing shock absorber piston
OEM Automatic blow - off and friction testing machine for testing shock absorber piston
Product Details:
Place of Origin: ZHE JIANG , CHINA
Brand Name: XIAYI
Certification: ISO9001:2008
Model Number: XYJD-FM01B
Payment & Shipping Terms:
Minimum Order Quantity: 1 SET
Price: NEGOTIATION
Packaging Details: STANDARD EXPORTING PACKAGE WITH WOODEN BOX
Delivery Time: 3-4 MONTHS
Payment Terms: L/C, T/T
Supply Ability: 1 SET PER 3 MONTHS
Contact Now
Detailed Product Description
MACHINE TYPE: TESTING RAW MATERIAL: STEEL AND OTHERS
LATERAL LOAD: 4.6-5.6KN ROD OD: 25MM
MEDIA: OIL AUTOMATION: AUTOMATIC
High Light:

automatic grooving machine

,

shock absorber machine

OEM Automatic blow - off and friction testing machine for testing shock absorber piston

 

TEST PARAMETERS

 

- Test machine: INSTRON

- Test stroke: ± 30 mm

- Test speed: 1 mm/s

- Temperature: room temperature

- Test fixture: special made tooling

- Use a tube of 200 mm height

- Effective force on piston must be:

0N, 70N, 150N, 220N, 450N

- The side load calculated as followed:

Side load =Effective force on piston * ((A+B) / A)

- Friction coefficient calculated as followed:

Friction coefficient= Friction / (2*effective force on piston)

 

Purpose of this test:

 

to determine the friction for PTFE banded piston when adding different weights. The test is performed with a constant lateral force applied to the piston during the pressure build up over the piston. Automatically get the average friction after testing five cycles.

 

Test procedure:

 

1. Cut the tube to the correct length, avoiding any possible deformation caused by clamping the tube. See to it that the tube is burr free.

 

2. Clean the tube with a brush or cloth in solvent. Check the inside of the tube after cleaning: no scratches contaminants or other things may be present which can have a negative influence on the friction.

 

3. Impregnate the tube with the correct oil. Check if the inside surface of the tube is fully covered with an oil film.

 

4. Assemble the piston on the rod and torque the piston on the piston post of the rod.

 

5. Add spacers between collar welded on rod and the location where the side load needs to be applied. -> is not needed if a groove is made in the rod.

 

6. Bring the rod – piston assembly in the tube and verify if the friction level is correct and consist over the length of the tube by traveling the piston by hand over the length of the tube. This will also lead to a good oil distribution over the inner surface of the tube.

 

7. Assemble the tube/rod in the tooling, seeing to it that the tube is well aligned.

 

8. Connect the load cell to the tensile bench, use if needed for the load cell a side load compensation construction.

 

Test result:

 

 

Sample nr. Effective force on piston
0N 70N 150N 220N 450N
Friction coef. Friction coef. Friction coef. Friction coef. Friction coef.
PISTON 1 9.30 / 39.70 0.284 63.80 0.213 83.90 0.191 150.30 0.167
PISTON 2 9.30 / 30.30 0.216 60.50 0.202 83.70 0.190 154.20 0.171
Avg. 9.30 / 35.00 0.250 62.15 0.207 83.80 0.190 152.25

0.169

 

Sample nr. Effective force on piston
0N 70N 150N 220N 450N
Friction coef. Friction coef. Friction coef. Friction coef. Friction coef.
PISTON 1 4.00 / 27.20 0.194 53.70 0.179 76.80 0.175 144.20 0.160
PISTON 2 4.00 / 24.60 0.176 55.00 0.183 81.40 0.185 156.40 0.174
Avg. 4.00 / 25.90 0.185 54.35 0.181 79.10 0.180 150.30 0.167

 

Sample nr. Effective force on piston
0N 70N 150N 220N 450N
Friction coef. Friction coef. Friction coef. Friction coef. Friction coef.
PISTON 1 3.60 / 21.90 0.156 50.70 0.169 75.70 0.172 153.30 0.170
PISTON 2 2.90 / 24.20 0.173 54.50 0.182 80.80 0.184 155.70 0.173
Avg. 3.25 / 23.05 0.165 52.60 0.175 78.25 0.178 154.50 0.172

 

 

Competitive advantage:

 

1.Can check the PTFE banding result

 

2.Easily operation

 

3.Machine design according to big shock absorber factory in the world

 

4.Can test friction and blow-off testing in the same testing machine

 

5.Can get the curves after testing

 

 

Application:

 

All PTFE banding piston with different size rang from 20mm to 45mm

 

 

Picture show

 

OEM Automatic blow - off and friction testing machine for testing shock absorber piston 0 

Contact Details
Ningbo XiaYi Electromechanical Technology Co.,Ltd.

Contact Person: Mrs. Leela

Tel: +8613586885132

Send your inquiry directly to us (0 / 3000)

Best Products
Other Products
宁波夏亿机电科技有限公司