Airtac SCJ100 Standard Cylinder SCJ100X350-50
The AirTAC Airtac SCJ100 Standard Cylinder SCJ100X350-50 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. Ø100mm bore, 350mm nominal stroke, PT1/2 ports and adjustable end cushioning.
- BoreØ100 mm
- Nominal stroke350 mm
- Stroke adjust-50 mm
- Port sizePT1/2
- Rod threadM20×1.5
- CushionAdjustable, 29 mm
About the Airtac SCJ100 Standard Cylinder SCJ100X350-50
The SCJ100X350-50 is a double-acting, single-rod pneumatic cylinder with a 100 mm bore and a 350 mm nominal stroke, featuring a rear-cap adjusting screw that provides a 50 mm field-adjustable range for fine-tuning the stroke end position. This model delivers a substantial push force of 3927 N at 0.5 MPa and can reach up to 7068 N at 0.9 MPa, making it a powerful actuator for heavy-duty industrial tasks. The 25 mm diameter piston rod and PT1/2 port ensure robust air flow, while the 29 mm air cushion provides smooth deceleration.
The adjustable stroke mechanism allows operators to precisely set the cylinder's end stop without dismounting the unit, which is invaluable for commissioning new machinery, accommodating product format changes, or compensating for mechanical wear over time. With a body length of 245 mm, this tie-rod cylinder is built for demanding environments where consistent, repeatable motion is critical. The standard TPU seals offer reliable performance within a -20 to +70 °C temperature range.
Airtac SCJ100 Standard Cylinder SCJ100X350-50 Technical Specifications
| Model | Airtac SCJ100 Standard Cylinder SCJ100X350-50 |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø100 mm |
| Nominal stroke | 350 mm |
| Stroke adjustment | Up to 50 mm (rear adjusting screw) |
| Acting type | Double acting (single rod) |
| Port size | PT1/2 |
| Rod thread | M20×1.5 |
| 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, 29 mm |
| Max stroke | Up to 1500 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 (Ø100mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 3927 N | 3682 N |
| 0.7 MPa | 5498 N | — |
| Max (@1.0 MPa) | 801 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 SCJ100 Standard Cylinder SCJ100X350-50
| SCJ | Adjustable-stroke tie-rod cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×350 | 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 SCJ100 Standard Cylinder SCJ100X350-50 Is Used
Commissioning & Setup
The 50 mm adjustable stroke allows technicians to dial in the exact end position during machine commissioning, eliminating the need to fabricate custom hard stops or swap out cylinders for minor position changes.
Format Changeovers
On packaging or assembly lines, the SCJ100X350-50 can be quickly re-adjusted to handle different product sizes or pallet dimensions, significantly reducing downtime between production runs.
Wear Compensation
In high-cycle clamping or pressing operations, the stroke can be incrementally extended to compensate for tooling or pad wear, maintaining consistent clamping force and process quality without replacing the actuator.
Is the Airtac SCJ100 Standard Cylinder SCJ100X350-50 the Right Cylinder?
Choose the SCJ100X350-50 when your application requires a powerful 100 mm bore cylinder with the flexibility to fine-tune the stroke end by up to 50 mm in the field. If you need more force, stepping up to the 125 mm bore provides 6136 N of push force at 0.5 MPa. For applications requiring a fixed, non-adjustable stroke, the standard SC100X350 is a more economical choice. This model is a direct replacement for another AirTAC SCJ100 cylinder with a 350 mm nominal stroke, 50 mm adjust range, PT ports, and basic mounting.
With a 350 mm stroke, the piston rod is fully extended, so you must evaluate side-loading forces carefully. Any radial load on the rod end can cause bending or premature seal wear. If your application involves significant side loads, use an external guide rail system or consider a guided cylinder to protect the rod and bearings.
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 SCJ100 Standard Cylinder SCJ100X350-50 FAQ
The theoretical push force is 3927 N at 0.5 MPa and 7068 N at 0.9 MPa. The pull force on the retract stroke is lower, at 3681 N at 0.5 MPa, due to the area occupied by the 25 mm piston rod.
A rear-cap adjusting screw lets you shorten the stroke end by up to 50 mm, setting a precise mechanical stop. Choose the SCJ when you need field adjustability for setup, changeovers, or wear take-up. The fixed-stroke SC is a better choice when the stroke length is a permanent, known value and cost is the primary concern.
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