The AirTAC Airtac AIRTAC SCJ63 Standard Cylinder SCJ63X800-100TC 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. Ø63mm bore, 800mm nominal stroke, PT1/4 ports and adjustable end cushioning.
The SCJ63X800-100TC is a double-acting, single-rod pneumatic cylinder that puts fine stroke-end tuning directly on the machine. Its rear-cap adjusting screw provides up to 100 mm of field-adjustable range, letting you dial in the exact 800 mm nominal stroke end without swapping the cylinder or adding external hard stops. The 63 mm bore delivers 1559 N of push force at 0.5 MPa and 2805 N at the 0.9 MPa maximum operating pressure, driven by a 20 mm diameter piston rod.
This model is configured with a TC centre trunnion mount, supplied with the TCM1 bracket (order code F-SC63TC), which allows the cylinder to pivot and is ideal for swinging or articulating loads. The standard PT1/4 port and TPU seals suit filtered-air service from -20 to +70 °C. With a 28 mm air cushion and a body length A of 197 mm, this adjustable-stroke unit is slightly longer than a fixed-stroke SC of the same bore, providing robust deceleration for the 800 mm stroke length.
| Model | Airtac AIRTAC SCJ63 Standard Cylinder SCJ63X800-100TC |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø63 mm |
| Nominal stroke | 800 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, 28 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.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 1559 N | 1402 N |
| 0.7 MPa | 2182 N | — |
| Max (@1.0 MPa) | 318 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.
| SCJ | Adjustable-stroke tie-rod cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×800 | 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.
On a packaging line handling different box sizes, the 100 mm adjust range allows operators to quickly reset the end-stop position for each product format without tools, using the rear screw to fine-tune the 800 mm stroke.
In a woodworking or metal-fabrication fixture, the adjustable stroke lets you dial in the final clamp depth on a long 800 mm actuator, compensating for material thickness variations or tooling wear over time.
During machine commissioning, the 100 mm screw adjustment allows engineers to experimentally determine the optimal stroke end for a new 800 mm process, then lock it in place without needing to order multiple fixed-stroke cylinders.
Choose the SCJ63X800-100TC when your application needs a long 800 mm reach with the ability to trim the stroke end by up to 100 mm during commissioning or format changes. If your force requirement is lower, the 50 mm bore SCJ50 series provides 982 N of push at 0.5 MPa in a lighter package; for higher force, step up to the 80 mm bore which delivers 2513 N at the same pressure. A fixed-stroke SC cylinder is a simpler, more cost-effective choice if you never need to adjust the stroke end position.
For an 800 mm stroke, side-loading and rod buckling are critical considerations. Always guide the load externally with a linear rail or rod guide, or switch to a guided cylinder assembly to prevent bending moments on the 20 mm rod. For direct replacement, match an AirTAC SCJ63 cylinder with an 800 mm nominal stroke, a 100 mm adjust range, PT1/4 ports, and the TC centre trunnion mounting configuration.
Adjustable-stroke checklist
At the standard 0.5 MPa operating pressure, the cylinder produces 1559 N of push force and 1402 N of pull force (the difference is due to the 20 mm single rod). At the maximum operating pressure of 0.9 MPa, the push force increases to 2805 N.
The rear-cap adjusting screw shortens the stroke end by up to 100 mm from the 800 mm nominal maximum. This lets you set any effective stroke between 700 and 800 mm. It is not a replacement for a longer fixed-stroke cylinder; if you need a full 900 mm of travel, you must select an SCJ63X900-100 or a fixed-stroke SC63X900 model.
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