ES Long-Life Shock Absorbers
ES18985 Non-Adjustable Hydraulic Shock Absorber
ES18985 non-adjustable hydraulic shock absorber with 4 mm operating stroke and 16 Nm/C maximum energy per cycle. Review mounting dimensions and operating limits, or request application support.
- Stroke (mm)
- 4
- Max energy per cycle (Nm/C)
- 16
- Max energy per hour (Nm/h)
- 28800
- Thread size
- M12 x 1.0
Model specifications
Performance and key specifications
- Stroke (mm)
- 4
- Optimal velocity range (m/s)
- 1.5-5.5
- Max energy per cycle (Nm/C)
- 16
- Max energy per hour (Nm/h)
- 28800
- Max impact force (N)
- 2200
- Max thrust force (N)
- 300
- Weight (kg)
- 0.056
Dimensions and mounting
- Total length (mm)
- 72.4
- Thread size
- M12 x 1.0
Selection and installation
Check operating stroke, energy per cycle and per hour, impact speed, driving force and mounting thread. The catalog distinguishes recommended operating stroke from piston-rod length (maximum travel); they are not interchangeable. Confirm service-life expectations and material options for the actual duty.
Series working principle
Hydraulic damping dissipates impact energy within a sealed assembly. The appropriate design depends on the duty cycle, environment and required stopping behaviour.
Catalog application and mounting notes
The catalog lists ES18985 as a compact general-purpose model for the mold-closing position, with a buffer cap and a 15-million-cycle service-life statement. Confirm the 4 mm operating stroke, M12 × 1.0 mounting thread and available installation envelope.
Engineering limits to confirm for this model
Published data below describes the model. A missing value needs confirmation; it is never a passed check. Use the cited model drawing and operating conditions when requesting a review.
- Published optimal impact velocity range
- 1.5-5.5 m/s
- Effective mass range
- Not established in the published model data — engineering confirmation required
- Return time
- Not established in the published model data — engineering confirmation required
- Return force
- Not established in the published model data — engineering confirmation required
- Operating temperature
- Not established in the published model data — engineering confirmation required
- Allowable side load or angle
- Not established in the published model data — engineering confirmation required
- Maximum impact force
- 2200 N
- Maximum thrust force
- 300 N
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. 39
- Shock absorber catalogue · pp. 39
- Product database: corresponding model record