EN Self-Compensating Shock Absorbers
EN20x22 Shock Absorbers
Model specifications, installation information and technical documents for EN20x22.

- 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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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
