Report of cabin cylinder test


Drawing number

HL-g2121-010

Product name

Cabin cylinder

Lot number


Total quantity

200

Trial quantity

200

Oil temperature in trial

Normal

Project

Records

Test specification

Result

Running times

Pump change direction 5 times when on load

1. outside leakage not allowed

2. no anomalies

Qualified

Pressure test

With bar chamber

Pressure:25MPa

1. outside leakage not allowed

2.parts not scratched

3.no part permanent deformation

Pressure hold

Time:10min

Without bar chamber

Pressure:25MPa

Time:10min

Trip inspection

If there is anomaly when pump is running with load

Rebound, air travel, jam are not allowed

Qualified

Inside leakage test

With bar chamber

Pressure:20MPa

Time:10min

Leakage:

Gr≦0.05mlmin

Qualified

Leakage:      ml/min

Without bar chamber

Pressure:20MPa

Time:10min

Leakage:

Gr≦0.05mlmin

Qualified

Leakage:        ml/min

Full travel check:

The actual measured length:    mm

Design required:1065.5mm

Qualified

Outside leakage test

If there is leakage in test

No leakage is allowed

No

Visual inspection

No peeling paint on the surface, no bubble, other requirements, see the product design

Result: this test is according to<test requirements of hualong hydraulic products>, in line with national factory standards.

 

                                                Quantity qualified: 10       Pass rate:100%

Tester: Humingxu            Inspector: Zhangzhiyong               Date of test: April 11,2020