Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ100X85-40
The AirTAC Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ100X85-40 is a genuine double-acting COMPACT cylinder (Ø100mm bore) whose extend end-position is set by an external M27×2.0 adjustment screw. You can dial the stroke anywhere from 45 to 85 mm on the machine — no shims, no part change.
- BoreØ100 mm
- Max stroke85 mm
- Adjustable range45–85 mm
- Adjuster threadM27×2.0
- Port sizePT3/8
- CushionFixed NBR bumper (both ends)
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ100X85-40
The AirTAC SDAJ100X85-40 is a double-acting compact cylinder featuring an external adjustable extend stop. By turning the R (M27x2.0) screw, you can dial the forward stroke anywhere between 45 and 85 mm directly on the machine, avoiding part swaps or shims. The adjuster strictly sets the mechanical stop position and does not alter the bore's force, delivering 3927 N of push at 0.5 MPa.
Built with a short riveted body, this large-bore unit saves significant axial mounting depth where traditional round-body or profile cylinders cannot fit. It relies on a fixed NBR bumper at each end to decelerate the stroke, which is not an adjustable air cushion. Note that this specific SKU lacks a piston magnet, so it cannot support reed or electronic switches without upgrading to the -S variant.
Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ100X85-40 Technical Specifications
| Model | Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ100X85-40 |
|---|---|
| Series | SDAJ compact adjustable-stroke cylinder |
| Bore size | Ø100 mm |
| Max stroke | 85 mm |
| Adjustable range | 45 – 85 mm |
| Adjuster thread (R) | M27×2.0 |
| Port size | PT3/8 |
| Acting type | Double acting |
|---|---|
| Rod end thread | M18×1.5 F / M26×1.5 male (B) |
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 500 mm/s |
| Cushion | Fixed NBR bumper (both ends) |
The adjustment screw shortens the extend stroke by up to 40 mm. Force is unchanged from a standard SDA of the same bore. Specifications follow the official AirTAC SDAJ datasheet.
Theoretical Output Force (Ø100mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 3927 N | 3525 N |
| 0.7 MPa | 5498 N | — |
| Max (@1.0 MPa) | 801 kgf | |
Force matches a standard SDA of the same bore; the adjuster only sets the stop position, not the area. Actual usable force is lower than theoretical due to friction.
Model Code: Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ100X85-40
| SDAJ | Compact double-acting cylinder with adjustable stroke. |
|---|---|
| 100 | Bore size in mm. |
| ×85 | Maximum stroke length in mm. |
| -40 | Adjustable window (10/20/30/40/50/75/100 mm). |
| S / B | S = magnet; B = male-thread rod (both optional). |
Thread: PT standard. Related SDA-family variants: SDA (fixed stroke), SDAD (double rod), SSA/STA (single acting), SDAT (duplex), SDAW (duplex-end).
Where the Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ100X85-40 Is Used
Heavy Press Setup
Dialing the extend stop between 45 and 85 mm allows operators to set precise forming depths on heavy metal presses without changing out hard stops.
Assembly Line Changeover
When switching product families, the external M27x2.0 adjuster lets maintenance teams quickly reposition the 3927 N push endpoint for varying part heights.
Vertical Lift Positioning
Provides a mechanical stop for lifting 200.2 kg loads vertically, ensuring the payload reaches the exact upper travel limit every cycle.
Is the Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ100X85-40 the Right Cylinder?
When sizing this 100 mm bore, evaluate your neighbors: stepping down to the SDAJ80 yields 2513.3 N of push at 0.5 MPa, while this SDAJ100 provides 3927 N. For heavy positioning tasks, the computed safe working load is roughly 2356 N (about 60 percent of the 0.5 MPa figure), translating to a vertical lift capacity of approximately 200.2 kg with a 2:1 safety margin.
This model is tailored for heavy fabrication lines requiring frequent on-site stroke tuning during changeovers. Remember that a plain cylinder does not hold its load on air loss or when the valve is centered; the piston drifts and the fixed bumper only decelerates near the end. For secure load holding without live pressure, you must integrate an external rod lock or a pilot-operated check valve. Confirm your bore, 85 mm max stroke, 40 mm window, PT3/8 port, female M18x1.5 rod thread, and lack of magnet before ordering.
Quick checklist
- ✓ Need on-machine stroke fine-tuning?
- ✓ Target position within 45–85 mm
- ✓ Force at your working pressure
- ✓ Access to reach the R adjuster
- ✓ 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 Lock the M27×2.0 adjuster after setting the stroke.
- check Avoid side load on the piston rod.
- check Front/rear covers are riveted — do not dismantle.
- check Installation by qualified personnel per AirTAC docs.
Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ100X85-40 FAQ
This 100 mm bore cylinder features a PT3/8 air port and delivers 3927 N push and 3524.9 N pull at 0.5 MPa. At 0.7 MPa, push increases to 5497.8 N and pull to 4934.8 N. The theoretical maximum push force is 801 kgf at 1.0 MPa.
The external R (M27x2.0) screw shortens the forward stroke by up to 40 mm, allowing the extend endpoint to be set anywhere from 45 to 85 mm. This mechanism is strictly a mechanical stop and not a mid-stroke lock; the cylinder cannot hold a load on air loss and requires an external rod lock for holding.
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