The AirTAC SC50 Standard Cylinder SC50X642S is a genuine double-acting standard air cylinder with a Ø50mm bore and 642mm stroke, PT1/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
The AirTAC SC50X642S is a double-acting single-rod pneumatic cylinder with a 50 mm bore and a 642 mm stroke, pre-equipped with a built-in magnet for direct mounting of CMSG/DMSG/EMSG reed or solid-state sensors. At the standard 0.7 MPa operating pressure it generates 1374 N of push force, placing it in a versatile mid-range power class for clamping and pressing tasks.
This model uses a 20 mm diameter piston rod with M16x1.5 male threads and PT1/4 ports. The adjustable air cushion at each end (21 mm cushion length) decelerates the piston smoothly, while the tie-rod construction keeps the overall body length compact at 150 mm plus stroke. The built-in magnet enables simple, clamp-on position sensing without extra brackets.
| Model | Airtac SC50 Standard Cylinder SC50X642S |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø50 mm |
| Stroke | 642 mm |
| Acting type | Double acting |
| 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 SC series datasheet. Operating pressure 0.15–1.0 MPa, proof pressure 1.5 MPa, temperature −20 to +70 °C. Confirm against the product label before installation. Thread options: PT (standard) / G.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 982 N | 825 N |
| 0.7 MPa | 1374 N | — |
| Max (approx.) | 200 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
| SC | Standard tie-rod cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×642 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Related variants: SCD (double rod), SCJ (adjustable stroke), SCT (multi-position). Seals: TPU standard / H = Viton / N = NBR. Thread: blank = PT, G = G thread.
The 642 mm stroke and 1374 N push force at 0.7 MPa make it suitable for a long-reach material stop or diverter gate on a conveyor line, with magnetic sensors confirming open/closed position.
Delivers consistent clamping force for medium-duty CNC fixtures or welding jigs. The built-in magnet allows easy addition of sensors to verify clamp engagement before a cycle starts.
Ideal for pushing cartons or totes off a line over a 642 mm travel. The adjustable cushion absorbs impact at the end of stroke, protecting the cylinder and the product.
For applications needing slightly less force, the 40 mm bore SC series delivers 879 N push at 0.7 MPa; stepping up to the 63 mm bore provides 2182 N. With a 642 mm stroke, ensure the rod is protected from side loads—long unsupported strokes can cause rod bending and premature bearing wear. Use an external linear guide or a guided cylinder if the load is not perfectly axial.
When replacing an existing cylinder, match five points: 50 mm bore, 642 mm stroke, PT1/4 port thread, the built-in magnet (-S suffix), and the basic (no bracket) mounting style. This SC tie-rod cylinder is shorter than an ISO 15552 profile and is not dimensionally interchangeable with that standard.
Quick checklist
At 0.5 MPa (approx. 73 psi) the theoretical push force is 982 N. At the commonly used 0.7 MPa line pressure, push force rises to 1374 N. The maximum operating force at 0.9 MPa is 1767 N.
Yes. The -S suffix in SC50X642S indicates a built-in magnet inside the piston. This lets you clamp AirTAC CMSG (reed) or DMSG/EMSG (solid-state) sensors directly onto the barrel tie-rods to detect piston position without external flags or brackets.
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