Airtac SCJ50 Standard Cylinder SCJ50X200-100
The AirTAC Airtac SCJ50 Standard Cylinder SCJ50X200-100 is a genuine double-acting SINGLE-ROD air cylinder with a rear-cap ADJUSTING SCREW: the stroke end is field-adjustable within a 100 mm range without swapping the cylinder. Ø50mm bore, 200mm nominal stroke, PT1/4 ports and adjustable end cushioning.
- BoreØ50 mm
- Nominal stroke200 mm
- Stroke adjust-100 mm
- Port sizePT1/4
- Rod threadM16×1.5
- CushionAdjustable, 21 mm
About the Airtac SCJ50 Standard Cylinder SCJ50X200-100
The SCJ50X200-100 is a double-acting, single-rod pneumatic cylinder from AirTAC that puts stroke-end adjustment directly into the rear cap. With a 50 mm bore and a 200 mm nominal stroke, the built-in screw lets you shorten the effective stroke by up to 100 mm in the field—ideal for commissioning trials or format changes where the exact stop position is only known after installation. The 20 mm piston rod and PT1/4 ports deliver a push force of 982 N at 0.5 MPa, rising to 1767 N at the 0.9 MPa maximum operating pressure.
This model uses the standard TPU seal set for a -20 to +70 °C working range and comes with PT threads. The body length A(SCJ) is 194 mm, and the adjustable air cushion helps decelerate the piston quietly near stroke end. Because it is a tie-rod design, it is not an ISO 15552 cylinder; for drop-in replacement, match another AirTAC SCJ50 with the same 200 mm nominal stroke and 100 mm adjustment range.
Airtac SCJ50 Standard Cylinder SCJ50X200-100 Technical Specifications
| Model | Airtac SCJ50 Standard Cylinder SCJ50X200-100 |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø50 mm |
| Nominal stroke | 200 mm |
| Stroke adjustment | Up to 100 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 SCJ50X200-100
| SCJ | Adjustable-stroke tie-rod cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×200 | Nominal (maximum) stroke length in mm. |
| -100 | 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 SCJ50X200-100 Is Used
End-Stop Commissioning
Dial in the exact stroke end position during machine setup without cutting brackets or adding external hard stops. The 100 mm adjustment range covers most trial-and-error positioning needs on assembly fixtures.
Wear Compensation
On clamping or pressing stations, gradually advance the rear screw to take up pad or tooling wear over time, maintaining consistent contact force without reprogramming the PLC or changing the cylinder.
Multi-Format Stopper
Use one SCJ50 cylinder as an adjustable part stopper on a conveyor. Operators can quickly change the stop position for different product lengths by turning the rear screw, eliminating change-part inventory.
Is the Airtac SCJ50 Standard Cylinder SCJ50X200-100 the Right Cylinder?
Choose the SCJ50X200-100 when you need a mid-range force actuator with on-machine stroke tuning. If your load requires more push, stepping up to the 63 mm bore gives 1559 N at 0.5 MPa; for a lighter, more compact solution, the 40 mm bore delivers 628 N. The adjustable stroke is the key differentiator from a fixed-stroke SC—if your stroke is permanently locked in, the SC50X200 is a simpler, lower-cost alternative. At 200 mm stroke, rod bending under side load is normally not a concern, but if the rod must guide an offset payload, add an external linear guide or consider a guided cylinder. For replacement, specify an AirTAC SCJ50X200-100 with PT ports, basic mount, and no magnet to match this configuration exactly.
Adjustable-stroke checklist
- ✓ Need to fine-tune stroke on the line?
- ✓ Nominal stroke + adjust range (-100)
- ✓ 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 SCJ50X200-100 FAQ
At 0.5 MPa, the push force is 982 N and the pull force is 825 N (the pull force is lower because the 20 mm rod reduces the piston area on the return side). At the maximum operating pressure of 0.9 MPa, push force reaches 1767 N. These values assume clean, filtered air at 40 µm.
Only if you need the adjustable stroke feature. The SCJ body is slightly longer to house the adjusting screw, so check your space envelope. The port size (PT1/4), rod thread (M16x1.5), and mounting accessories (FA, LB, TC) are identical, but you must match the 100 mm adjustment range when ordering a direct replacement for another SCJ50X200-100.
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