Adjustment principle
The catalog explains the adjustable knob, cam and oil orifices as the mechanism that changes the effective damping passage during piston travel.
EK Series
EK / EKL Adjustable Hydraulic Shock Absorbers
External damping adjustment helps match the absorber to changing impact conditions. The EKL range addresses lower approach speeds.
Selector eligible absorber series
Technical model table
Representative product renderings. Select an image to view it in a new tab.
46 of 46 models
Columns5
Choose up to 8 table columns
- Request a quote
EK 10x7 (B)
- Stroke (mm)
- 7
- Max energy per cycle (Nm/C)
- 7
- Max energy per hour (Nm/h)
- 13600
- Max impact force (N)
- 1220
- Max thrust force (N)
- 350
- Request a quote
EK10x7
- Stroke (mm)
- 7
- Max energy per cycle (Nm/C)
- 7
- Max energy per hour (Nm/h)
- 13600
- Max impact force (N)
- 1220
- Max thrust force (N)
- 350
- Request a quote
EK10x7B
- Stroke (mm)
- 7
- Max energy per cycle (Nm/C)
- 7
- Max energy per hour (Nm/h)
- 13600
- Max impact force (N)
- 1220
- Max thrust force (N)
- 350
- Stroke (mm)
- 10
- Max energy per cycle (Nm/C)
- 7
- Max energy per hour (Nm/h)
- 20900
- Max impact force (N)
- 890
- Max thrust force (N)
- 350
- Request a quote
EK12x10B
Specifications →- Stroke (mm)
- 10
- Max energy per cycle (Nm/C)
- 7
- Max energy per hour (Nm/h)
- 20900
- Max impact force (N)
- 890
- Max thrust force (N)
- 350
- Stroke (mm)
- 10
- Max energy per cycle (Nm/C)
- 7
- Max energy per hour (Nm/h)
- 22000
- Max impact force (N)
- 890
- Max thrust force (N)
- 350
- Request a quote
EK14x10B
Specifications →- Stroke (mm)
- 10
- Max energy per cycle (Nm/C)
- 7
- Max energy per hour (Nm/h)
- 22000
- Max impact force (N)
- 890
- Max thrust force (N)
- 350
- Request a quote
EKL14X10
- Stroke (mm)
- 10
- Max energy per cycle (Nm/C)
- 7
- Max energy per hour (Nm/h)
- 22000
- Max impact force (N)
- 890
- Max thrust force (N)
- 440
- Request a quote
EKL14X10B
- Stroke (mm)
- 10
- Max energy per cycle (Nm/C)
- 7
- Max energy per hour (Nm/h)
- 22000
- Max impact force (N)
- 890
- Max thrust force (N)
- 440
- Stroke (mm)
- 12.7
- Max energy per cycle (Nm/C)
- 19
- Max energy per hour (Nm/h)
- 37400
- Max impact force (N)
- 2000
- Max thrust force (N)
- 530
- Request a quote
EK16x12B
Specifications →- Stroke (mm)
- 12.7
- Max energy per cycle (Nm/C)
- 19
- Max energy per hour (Nm/h)
- 37400
- Max impact force (N)
- 2000
- Max thrust force (N)
- 530
- Request a quote
EKL16X12
- Stroke (mm)
- 12.7
- Max energy per cycle (Nm/C)
- 19
- Max energy per hour (Nm/h)
- 37400
- Max impact force (N)
- 2000
- Max thrust force (N)
- 890
- Request a quote
EKL16X12B
- Stroke (mm)
- 12.7
- Max energy per cycle (Nm/C)
- 19
- Max energy per hour (Nm/h)
- 37400
- Max impact force (N)
- 2000
- Max thrust force (N)
- 890
- Stroke (mm)
- 12
- Max energy per cycle (Nm/C)
- 31
- Max energy per hour (Nm/h)
- 35200
- Max impact force (N)
- 3500
- Max thrust force (N)
- 670
- Request a quote
EK20x12B
Specifications →- Stroke (mm)
- 12
- Max energy per cycle (Nm/C)
- 31
- Max energy per hour (Nm/h)
- 35200
- Max impact force (N)
- 3500
- Max thrust force (N)
- 670
- Request a quote
EKL20X12
- Stroke (mm)
- 12
- Max energy per cycle (Nm/C)
- 31
- Max energy per hour (Nm/h)
- 35200
- Max impact force (N)
- 3500
- Max thrust force (N)
- 1120
- Request a quote
EKL20X12B
- Stroke (mm)
- 12
- Max energy per cycle (Nm/C)
- 31
- Max energy per hour (Nm/h)
- 35200
- Max impact force (N)
- 3500
- Max thrust force (N)
- 1120
- Stroke (mm)
- 25
- Max energy per cycle (Nm/C)
- 81
- Max energy per hour (Nm/h)
- 77000
- Max impact force (N)
- 4400
- Max thrust force (N)
- 1330
- Request a quote
EK25x25B
Specifications →- Stroke (mm)
- 25
- Max energy per cycle (Nm/C)
- 81
- Max energy per hour (Nm/h)
- 77000
- Max impact force (N)
- 4400
- Max thrust force (N)
- 1330
- Request a quote
EKL25X25
- Stroke (mm)
- 25
- Max energy per cycle (Nm/C)
- 81
- Max energy per hour (Nm/h)
- 77000
- Max impact force (N)
- 4400
- Max thrust force (N)
- 2016
- Request a quote
EKL25X25B
- Stroke (mm)
- 25
- Max energy per cycle (Nm/C)
- 81
- Max energy per hour (Nm/h)
- 77000
- Max impact force (N)
- 4400
- Max thrust force (N)
- 2016
- Stroke (mm)
- 25
- Max energy per cycle (Nm/C)
- 81
- Max energy per hour (Nm/h)
- 77000
- Max impact force (N)
- 4400
- Max thrust force (N)
- 1330
- Request a quote
EK27x25B
Specifications →- Stroke (mm)
- 25
- Max energy per cycle (Nm/C)
- 81
- Max energy per hour (Nm/h)
- 77000
- Max impact force (N)
- 4400
- Max thrust force (N)
- 1330
- Request a quote
EKL27X25
- Stroke (mm)
- 25
- Max energy per cycle (Nm/C)
- 81
- Max energy per hour (Nm/h)
- 77000
- Max impact force (N)
- 4400
- Max thrust force (N)
- 2016
- Request a quote
EKL27X25B
- Stroke (mm)
- 25
- Max energy per cycle (Nm/C)
- 81
- Max energy per hour (Nm/h)
- 77000
- Max impact force (N)
- 4400
- Max thrust force (N)
- 2016
- Stroke (mm)
- 25
- Max energy per cycle (Nm/C)
- 215
- Max energy per hour (Nm/h)
- 75700
- Max impact force (N)
- 11120
- Max thrust force (N)
- 2220
- Request a quote
EKL33X25
- Stroke (mm)
- 25
- Max energy per cycle (Nm/C)
- 215
- Max energy per hour (Nm/h)
- 75700
- Max impact force (N)
- 11120
- Max thrust force (N)
- 3335
- Stroke (mm)
- 50
- Max energy per cycle (Nm/C)
- 424
- Max energy per hour (Nm/h)
- 98962
- Max impact force (N)
- 11120
- Max thrust force (N)
- 2220
- Request a quote
EKL33X50
- Stroke (mm)
- 50
- Max energy per cycle (Nm/C)
- 424
- Max energy per hour (Nm/h)
- 98962
- Max impact force (N)
- 11120
- Max thrust force (N)
- 3335
- Stroke (mm)
- 25
- Max energy per cycle (Nm/C)
- 215
- Max energy per hour (Nm/h)
- 91000
- Max impact force (N)
- 11120
- Max thrust force (N)
- 2220
- Request a quote
EKL36X25
- Stroke (mm)
- 25
- Max energy per cycle (Nm/C)
- 215
- Max energy per hour (Nm/h)
- 91000
- Max impact force (N)
- 11120
- Max thrust force (N)
- 3335
- Stroke (mm)
- 50
- Max energy per cycle (Nm/C)
- 424
- Max energy per hour (Nm/h)
- 111400
- Max impact force (N)
- 11120
- Max thrust force (N)
- 2220
- Request a quote
EKL36X50
- Stroke (mm)
- 50
- Max energy per cycle (Nm/C)
- 424
- Max energy per hour (Nm/h)
- 111400
- Max impact force (N)
- 11120
- Max thrust force (N)
- 3335
- Stroke (mm)
- 25
- Max energy per cycle (Nm/C)
- 425
- Max energy per hour (Nm/h)
- 126000
- Max impact force (N)
- 20000
- Max thrust force (N)
- 2890
- Request a quote
EKL42X25
- Stroke (mm)
- 25
- Max energy per cycle (Nm/C)
- 425
- Max energy per hour (Nm/h)
- 126000
- Max impact force (N)
- 20000
- Max thrust force (N)
- 6660
- Stroke (mm)
- 50
- Max energy per cycle (Nm/C)
- 850
- Max energy per hour (Nm/h)
- 167000
- Max impact force (N)
- 20000
- Max thrust force (N)
- 2890
- Request a quote
EKL42X50
- Stroke (mm)
- 50
- Max energy per cycle (Nm/C)
- 850
- Max energy per hour (Nm/h)
- 167000
- Max impact force (N)
- 20000
- Max thrust force (N)
- 6660
- Stroke (mm)
- 75
- Max energy per cycle (Nm/C)
- 1300
- Max energy per hour (Nm/h)
- 201000
- Max impact force (N)
- 20000
- Max thrust force (N)
- 2890
- Stroke (mm)
- 50
- Max energy per cycle (Nm/C)
- 2260
- Max energy per hour (Nm/h)
- 271000
- Max impact force (N)
- 51000
- Max thrust force (N)
- 6660
- Request a quote
EKL64X50
- Stroke (mm)
- 50
- Max energy per cycle (Nm/C)
- 2260
- Max energy per hour (Nm/h)
- 271000
- Max impact force (N)
- 51000
- Max thrust force (N)
- 17760
- Request a quote
EK64x100
Specifications →- Stroke (mm)
- 100
- Max energy per cycle (Nm/C)
- 4520
- Max energy per hour (Nm/h)
- 362000
- Max impact force (N)
- 51000
- Max thrust force (N)
- 6660
- Request a quote
EK64x150
Specifications →- Stroke (mm)
- 150
- Max energy per cycle (Nm/C)
- 6780
- Max energy per hour (Nm/h)
- 421000
- Max impact force (N)
- 51000
- Max thrust force (N)
- 6660
- Request a quote
EK85x50
- Stroke (mm)
- 50
- Max energy per cycle (Nm/C)
- 2300
- Max energy per hour (Nm/h)
- 372000
- Max impact force (N)
- 67000
- Max thrust force (N)
- 12000
- Request a quote
EK85x90
- Stroke (mm)
- 90
- Max energy per cycle (Nm/C)
- 4000
- Max energy per hour (Nm/h)
- 652000
- Max impact force (N)
- 67000
- Max thrust force (N)
- 12000
- Request a quote
EK85x125
- Stroke (mm)
- 125
- Max energy per cycle (Nm/C)
- 5700
- Max energy per hour (Nm/h)
- 933000
- Max impact force (N)
- 67000
- Max thrust force (N)
- 12000
- Request a quote
EK85x165
- Stroke (mm)
- 165
- Max energy per cycle (Nm/C)
- 7300
- Max energy per hour (Nm/h)
- 1215000
- Max impact force (N)
- 67000
- Max thrust force (N)
- 12000
Construction and operating principle
The piston forces oil through metering passages to dissipate impact energy. Turning the adjustment knob changes the effective flow area; the return mechanism resets the piston after the load is removed.
Applications and selection
Cylinder-driven, motor-driven and free-moving mechanisms requiring controlled deceleration. Check stroke, energy per cycle and hourly energy together.
Mounting and configuration
Match the mounting nuts, stop collars, flanges and side-load adapters to the exact model and thread. The catalogue's (B) designation identifies the cap-equipped variant; cap and overall-length differences must be checked separately.
Application and adjustment notes
Use EK and EKL when the stop needs adjustable hydraulic deceleration.
EK adjustable shock absorbers cover machine stops where impact speed and drive force vary by application. EKL is the lower approach-speed option in the same adjustable shock-absorber family, so compare speed, drive force, stroke and energy ratings in the model table before selection.
Lower-speed EKL position
Use EKL when the application approaches the stop at lower speed, then compare the specific model table for approach speed, drive force, stroke, energy per cycle and energy per hour.
Setting method
Use the catalog setting curves and 0-8 adjustment scale as a commissioning reference. Do not infer a curve for a model that is not shown.
- Send moving mass, impact speed, stroke, drive or thrust force, cycles per hour, mounting thread and available envelope.
- For procurement, start with stroke, energy, force and thread filters, then request a confirmation if the operating case is unusual.
- For engineering, start with the guided sizing path, then use the model table and application data to confirm the shortlist.
- Do not treat application examples as delivered customer outcomes or quantified performance claims.
PDF sources: EKD full catalog and shock absorber catalog pp. 6-7 for overview and principle, pp. 8-19 for model data, p. 20 for adjustment setting and p. 21 for application categories.
Adjustable hydraulic construction
Catalogue cutaway showing the piston, metering path, return spring and external adjustment assembly. The arrows identify component positions rather than measured flow data.
EKD全本样册 · PDF pages 7
Technical reference: Product catalogue · PDF pages 6, 7, 8, 9, 10