Airtac SCJ40 Standard Cylinder SCJ40X160-40
The AirTAC Airtac SCJ40 Standard Cylinder SCJ40X160-40 is a genuine double-acting SINGLE-ROD air cylinder with a rear-cap ADJUSTING SCREW: the stroke end is field-adjustable within a 40 mm range without swapping the cylinder. Ø40mm bore, 160mm nominal stroke, PT1/4 ports and adjustable end cushioning.
- BoreØ40 mm
- Nominal stroke160 mm
- Stroke adjust-40 mm
- Port sizePT1/4
- Rod threadM12×1.25
- CushionAdjustable, 21 mm
About the Airtac SCJ40 Standard Cylinder SCJ40X160-40
The SCJ40X160-40 is a 40 mm bore double-acting, single-rod pneumatic cylinder with a field-adjustable stroke end. A rear-cap adjusting screw lets you shorten the stroke by up to 40 mm, giving an effective range from 120 mm to the nominal 160 mm. This is practical for commissioning trials or format changeovers where the exact stop position needs dialling in on the machine.
At 0.5 MPa it delivers 628 N push and 528 N pull, with a 16 mm diameter piston rod and PT1/4 ports. The cylinder body length (A dimension) is 185 mm for the SCJ configuration, and the built-in air cushion is 21 mm long to decelerate the piston quietly. Maximum operating pressure is 1.0 MPa, where push force reaches 1130 N.
Airtac SCJ40 Standard Cylinder SCJ40X160-40 Technical Specifications
| Model | Airtac SCJ40 Standard Cylinder SCJ40X160-40 |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø40 mm |
| Nominal stroke | 160 mm |
| Stroke adjustment | Up to 40 mm (rear adjusting screw) |
| Acting type | Double acting (single rod) |
| Port size | PT1/4 |
| Rod thread | M12×1.25 |
| 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 (Ø40mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa | 880 N | — |
| Max (@1.0 MPa) | 128 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 SCJ40 Standard Cylinder SCJ40X160-40
| SCJ | Adjustable-stroke tie-rod cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×160 | Nominal (maximum) stroke length in mm. |
| -40 | 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 SCJ40 Standard Cylinder SCJ40X160-40 Is Used
Commissioning & Setup
During machine commissioning, the 40 mm adjust range lets technicians dial in the exact end-stop position for a 160 mm stroke actuator without swapping shims or mechanical stops.
Product Format Changeover
On packaging or sorting lines, operators can quickly shorten the stroke from 160 mm down to 120 mm to handle different product sizes, reducing changeover time.
Wear Compensation
In clamping or pressing fixtures, the adjusting screw can take up tooling wear or material thickness variation over time, maintaining consistent contact without reprogramming.
Is the Airtac SCJ40 Standard Cylinder SCJ40X160-40 the Right Cylinder?
Choose the SCJ40X160-40 when you need to fine-tune the stroke end without removing the cylinder or adding external hard stops. If the 628 N push force at 0.5 MPa is marginal, stepping up to a 50 mm bore (SCJ50) gives 982 N push at the same pressure. For applications that do not require stroke adjustment, the fixed-stroke SC40X160 is a simpler, slightly shorter alternative. The direct replacement match is another AirTAC SCJ adjustable-stroke cylinder with 40 mm bore, 160 mm nominal stroke, a 40 mm adjust range, and PT ports.
Adjustable-stroke checklist
- ✓ Need to fine-tune stroke on the line?
- ✓ Nominal stroke + adjust range (-40)
- ✓ 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 SCJ40 Standard Cylinder SCJ40X160-40 FAQ
At 0.5 MPa, push force is 628 N and pull force is 528 N (the difference is due to the 16 mm single rod). At the maximum operating pressure of 0.9 MPa, push force reaches 1130 N.
A screw in the rear cap sets the retracted end position. Turning it shortens the stroke by up to 40 mm from the nominal 160 mm. It adjusts the stroke end only—it does not change the cylinder's force, speed, or bore size.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models usually ship in 3-4 days.
Fast Reply
Most inquiries answered within 7-8 hours.
Related AirTAC SCJ Adjustable-Stroke Cylinders
Request a Quote for Airtac SCJ40 Standard Cylinder SCJ40X160-40
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.