EN Self-Compensating Shock Absorbers

EN20x22 Shock Absorbers

Model specifications, installation information and technical documents for EN20x22.

EN — Series illustration. Refer to the model drawing for its outline and mounting dimensions.
Series illustration. Refer to the model drawing for its outline and mounting dimensions.
Stroke (mm)
22
Max energy per cycle (Nm/C)
62
Max energy per hour (Nm/h)
59070
Thread size
M20x1.5

Model specifications

Performance and key specifications

Stroke (mm)
22
Optimal velocity range (m/s)
0.08-12
Max energy per cycle (Nm/C)
62
Max energy per hour (Nm/h)
59070
Max impact force (N)
3750
Max thrust force (N)
1600

Dimensions and mounting

Total length (mm)
118.4
Thread size
M20x1.5
Dimension A (mm)
118.4
Dimension WL (mm)
12.7
Dimension D (mm)
4.8
Dimension A1 (mm)
130.3
Dimension F (mm)
95.5
Dimension WF (mm)
18.0
Dimension J (mm)
1.0
Dimension G (mm)
16.3
Dimension H (mm)
7.6
Dimension E1 (mm)
12.7

Selection and installation

Automation mechanisms and precision motion stops. Match impact speed, effective mass and energy to the selected model.

Series working principle

As the piston travels, it progressively closes metering holes and changes the oil-flow area. A return spring resets the absorber for the next impact.

Catalog application and mounting notes

EN20x22 is a fixed-type hydraulic shock absorber with a catalog stroke of 22.0 mm and a maximum energy rating of 62.0 Nm per cycle. The standard model has an M20 x 1.5 body thread and a catalog overall length of 118.4 mm; the capped B version uses the 130.3 mm A1 dimension. Confirm the damping code, impact speed, available stopping travel and hourly duty for the actual machine, and verify the complete model code before ordering.

Replacement candidates for referenced models

Model-number relationships are recommendations only. Final selection must be based on the actual operating conditions, mounting and application review.

SMC RB1412

RB

Replacement candidate; application confirmation required

Matched or capacity-qualified fields
Energy per cycle · Energy per hour · Stroke
Different or confirmation-required fields
Body thread · Impact velocity · Published force limit

SMC RBL1412

RBL coolant-resistant

Replacement candidate; application confirmation required

Matched or capacity-qualified fields
Energy per cycle · Energy per hour · Stroke
Different or confirmation-required fields
Body thread · Impact velocity · Published force limit

Drawings and documents

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STEP

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Specification sources

Specifications follow the current model catalogue, supported by the referenced catalogue pages and the product database model record.

  • EKD full catalogue (Chinese) · pp. 24
  • Product database: corresponding model record