Airtac SCJ50 Standard Cylinder SCJ50X160-30
The AirTAC Airtac SCJ50 Standard Cylinder SCJ50X160-30 is a genuine double-acting SINGLE-ROD air cylinder with a rear-cap ADJUSTING SCREW: the stroke end is field-adjustable within a 30 mm range without swapping the cylinder. Ø50mm bore, 160mm nominal stroke, PT1/4 ports and adjustable end cushioning.
- BoreØ50 mm
- Nominal stroke160 mm
- Stroke adjust-30 mm
- Port sizePT1/4
- Rod threadM16×1.5
- CushionAdjustable, 21 mm
About the Airtac SCJ50 Standard Cylinder SCJ50X160-30
The SCJ50X160-30 provides a nominal 160 mm stroke with a 30 mm rear-end adjustment range, letting you fine-tune the stop position on the fly. With a 20 mm piston rod and PT1/4 ports, this double-acting, single-rod cylinder delivers 982 N of push force at 0.5 MPa, scaling up to 1767 N at the maximum operating pressure of 0.9 MPa.
Its tie-rod construction and 21 mm air cushion ensure smooth deceleration, while the 194 mm body length (A dimension) keeps the package compact. The rear adjusting screw only alters the stroke end, so the full bore force is always available regardless of the set position.
Airtac SCJ50 Standard Cylinder SCJ50X160-30 Technical Specifications
| Model | Airtac SCJ50 Standard Cylinder SCJ50X160-30 |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø50 mm |
| Nominal stroke | 160 mm |
| Stroke adjustment | Up to 30 mm (rear adjusting screw) |
| Acting type | Double acting (single rod) |
| Port size | PT1/4 |
| Rod thread | M16×1.5 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 800 mm/s |
| Cushion | Adjustable, 21 mm |
| Max stroke | Up to 1200 mm |
Specifications follow the official AirTAC SCJ (adjustable-stroke) datasheet. The rear adjusting screw sets the stroke end position; force is the same as the equivalent single-rod SC bore. Confirm against the product label before installation. Thread options: PT (standard) / G.
Theoretical Output Force (Ø50mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 982 N | 825 N |
| 0.7 MPa | 1374 N | — |
| Max (@1.0 MPa) | 200 kgf | |
SCJ is single-rod, so force matches the equivalent SC bore: push uses the full bore area, pull subtracts the rod area. Actual usable force is lower than theoretical due to friction and back-pressure; size with a safety margin.
Model Code: Airtac SCJ50 Standard Cylinder SCJ50X160-30
| SCJ | Adjustable-stroke tie-rod cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×160 | Nominal (maximum) stroke length in mm. |
| -30 | Adjustable-stroke range in mm (options 10/20/30/40/50/75/100). |
| -S | Optional built-in magnet for sensor position sensing. |
Related types: SC (single rod, fixed stroke), SCD (double rod), SCT (multi-position). SCJ mounting: Basic, FA, LB, TC, TCM1. Seals: TPU standard / H = Viton / N = NBR. Thread: blank = PT, G = G thread.
Where the Airtac SCJ50 Standard Cylinder SCJ50X160-30 Is Used
Commissioning Fine-Tuning
Adjust the end position during initial machine setup to perfectly align with mating parts, eliminating the need for shims or custom hard stops.
Format Changeover
Quickly adapt the stroke for different product sizes on a packaging line by turning the rear screw, reducing downtime between batches.
Wear Compensation
Take up mechanical play that develops over time in linkages or tooling, maintaining precise end-of-stroke positioning without replacing the cylinder.
Is the Airtac SCJ50 Standard Cylinder SCJ50X160-30 the Right Cylinder?
Choose the SCJ50X160-30 when you need to dial in the stroke end without swapping cylinders. If 982 N of push force at 0.5 MPa is insufficient, stepping up to the 63 mm bore provides 1559 N. For applications that don't require field adjustment, the fixed-stroke SC50X160 is a direct alternative. To replace this unit, match the 50 mm bore, 160 mm nominal stroke, 30 mm adjust range, PT1/4 ports, and basic mounting. For strokes of 300 mm or more, evaluate side-load forces and consider an external guide to protect the 20 mm rod from bending.
Adjustable-stroke checklist
- ✓ Need to fine-tune stroke on the line?
- ✓ Nominal stroke + adjust range (-30)
- ✓ Required force at your working pressure
- ✓ Port/thread type (PT/NPT/G)
- ✓ Magnet (-S) for sensors?
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Set the rear adjusting screw, then lock it before running.
- check Adjust end cushion screws for smooth stops.
- check Use SCJ mounting accessory (FA / LB / TC / TCM1).
- check Installation by qualified personnel per AirTAC docs.
Airtac SCJ50 Standard Cylinder SCJ50X160-30 FAQ
At 0.5 MPa, the push force is 982 N and the pull force is 825 N due to the 20 mm rod. At the maximum operating pressure of 0.9 MPa, the push force increases to 1767 N.
A screw in the rear cap lets you shorten the stroke end by up to 30 mm. It sets a mechanical stop for the piston, so the 160 mm nominal stroke is the maximum; you can reduce it in the field without disassembling the cylinder.
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