Airtac SCJ50 Standard Cylinder SCJ50X30-30S
The AirTAC Airtac SCJ50 Standard Cylinder SCJ50X30-30S 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, 30mm nominal stroke, PT1/4 ports and adjustable end cushioning.
- BoreØ50 mm
- Nominal stroke30 mm
- Stroke adjust-30 mm
- Port sizePT1/4
- Rod threadM16×1.5
- CushionAdjustable, 21 mm
About the Airtac SCJ50 Standard Cylinder SCJ50X30-30S
The SCJ50X30-30S is a double-acting, single-rod pneumatic cylinder from AirTAC, delivering a robust 982 N of push force at 0.5 MPa. Its defining feature is the rear-cap adjusting screw, which provides a 30 mm field-adjustable range to fine-tune the stroke end position without removing the cylinder from the machine. This model includes a built-in magnet, enabling direct mounting of CMSG/DMSG/EMSG sensors for precise end-of-stroke detection.
With a 20 mm diameter piston rod and PT1/4 ports, this 50 mm bore cylinder is built for reliable cycling in compact automation. The adjustable air cushion decelerates the piston smoothly over the final 21 mm of travel, protecting end caps and reducing noise. Its body length A is 194 mm, making it a direct, drop-in replacement for any AirTAC SCJ50 with a 30 mm nominal stroke and matching adjust range.
Airtac SCJ50 Standard Cylinder SCJ50X30-30S Technical Specifications
| Model | Airtac SCJ50 Standard Cylinder SCJ50X30-30S |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø50 mm |
| Nominal stroke | 30 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 SCJ50X30-30S
| SCJ | Adjustable-stroke tie-rod cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×30 | 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 SCJ50X30-30S Is Used
Commissioning & Setup
Allows engineers to quickly fine-tune the actuator's end-stop during initial machine setup and trial runs, eliminating the need to shim or reposition hard stops.
Wear Compensation
On high-cycle packaging lines, the 30 mm adjustment can be used to periodically take up mechanical slack or compensate for gripper pad wear, maintaining consistent product handling.
Format Changeovers
Ideal for machines processing multiple product sizes where the stroke end must be shifted by a known amount. The screw adjustment enables a repeatable, tool-free changeover between batches.
Is the Airtac SCJ50 Standard Cylinder SCJ50X30-30S the Right Cylinder?
Select the SCJ50X30-30S when you need a mid-range force actuator with the flexibility to dial in the exact stroke end on-site. If your application requires more force, stepping up to the 63 mm bore provides 1559 N of push force at the same pressure. For a simpler, fixed-stroke solution without the adjustment mechanism, the standard SC50 series is a suitable alternative. This cylinder is a direct replacement for any SCJ50 with a 30 mm nominal stroke, a 30 mm adjust range, PT threads, and a magnet.
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 SCJ50X30-30S FAQ
At the standard 0.5 MPa operating pressure, this 50 mm bore cylinder generates 982 N of push force and 825 N of pull force. The maximum push force at 0.9 MPa is 1767 N. The force is identical to a fixed-stroke SC50 cylinder.
A screw in the rear cap acts as an internal, adjustable end-stop for the piston. Turning the screw shortens the stroke end by up to 30 mm from the 30 mm nominal maximum. It sets the physical stopping point and does not regulate air pressure or speed.
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 SCJ50 Standard Cylinder SCJ50X30-30S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.