Airtac SCJ50 Standard Cylinder SCJ50X700-50
The AirTAC Airtac SCJ50 Standard Cylinder SCJ50X700-50 is a genuine double-acting SINGLE-ROD air cylinder with a rear-cap ADJUSTING SCREW: the stroke end is field-adjustable within a 50 mm range without swapping the cylinder. Ø50mm bore, 700mm nominal stroke, PT1/4 ports and adjustable end cushioning.
- BoreØ50 mm
- Nominal stroke700 mm
- Stroke adjust-50 mm
- Port sizePT1/4
- Rod threadM16×1.5
- CushionAdjustable, 21 mm
About the Airtac SCJ50 Standard Cylinder SCJ50X700-50
The SCJ50X700-50 is a double-acting, single-rod pneumatic cylinder engineered for applications requiring a long 700 mm nominal stroke with 50 mm of field-adjustable stroke-end control. Its 50 mm bore generates 982 N of push force at 0.5 MPa, scaling up to 1767 N at the maximum operating pressure of 0.9 MPa, providing substantial force for mid-range automation tasks.
A rear-cap adjusting screw allows operators to shorten the stroke end by up to 50 mm without removing the cylinder, making it ideal for commissioning, wear compensation, or format changeovers on long-stroke machinery. The cylinder uses a 20 mm diameter piston rod, PT1/4 ports, and an M16x1.5 rod thread, with an overall body length of 194 mm plus the 700 mm stroke.
Airtac SCJ50 Standard Cylinder SCJ50X700-50 Technical Specifications
| Model | Airtac SCJ50 Standard Cylinder SCJ50X700-50 |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø50 mm |
| Nominal stroke | 700 mm |
| Stroke adjustment | Up to 50 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 SCJ50X700-50
| SCJ | Adjustable-stroke tie-rod cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×700 | Nominal (maximum) stroke length in mm. |
| -50 | 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 SCJ50X700-50 Is Used
Long-Stroke Material Stops
Adjust the 50 mm screw to fine-tune the stopping point for large panels or sheets on a conveyor, ensuring precise alignment without reprogramming sensors.
Commissioning & Wear Take-Up
Dial in the exact 700 mm stroke end during machine setup and easily compensate for gripper pad wear or mechanical slack over time without replacing the cylinder.
Format Changeovers
Quickly adapt the actuator's reach for different product sizes on a packaging line by adjusting the rear screw, reducing downtime between production runs.
Is the Airtac SCJ50 Standard Cylinder SCJ50X700-50 the Right Cylinder?
Select the SCJ50X700-50 when you need a robust 50 mm bore actuator with a long reach and the ability to dial in the exact end position. If the 982 N push force at 0.5 MPa is insufficient, stepping up to a 63 mm bore provides 1559 N; for a lighter, more compact solution, the 40 mm bore delivers 628 N. For applications where the stroke length will never need adjustment, the fixed-stroke SC50X700 is a simpler alternative.
At a 700 mm stroke, be mindful of side-loading on the 20 mm rod. If the load is not perfectly guided, consider adding an external guide rail or switching to a guided cylinder to prevent rod bending and premature seal wear. This model is a direct replacement for an existing AirTAC SCJ50X700-50 with PT ports and basic mounting.
Adjustable-stroke checklist
- ✓ Need to fine-tune stroke on the line?
- ✓ Nominal stroke + adjust range (-50)
- ✓ 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 SCJ50X700-50 FAQ
The push force is 982 N at 0.5 MPa and 1767 N at the maximum operating pressure of 0.9 MPa. The pull force is lower due to the single-rod design, providing 825 N at 0.5 MPa.
No, as a standard double-acting cylinder, it will not hold its position when air is exhausted. The piston can drift or drop. If load holding is required, you must add an external mechanical lock, a rod brake, or a pilot-operated check valve.
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 SCJ50X700-50
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.