Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ80X35-20
The AirTAC Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ80X35-20 is a genuine double-acting COMPACT cylinder (Ø80mm bore) whose extend end-position is set by an external M20×1.5 adjustment screw. You can dial the stroke anywhere from 15 to 35 mm on the machine — no shims, no part change.
- BoreØ80 mm
- Max stroke35 mm
- Adjustable range15–35 mm
- Adjuster threadM20×1.5
- 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 SDAJ80X35-20
The AirTAC SDAJ80X35-20 is a double-acting compact cylinder featuring an external adjustable extend stop. By turning the R (M20x1.5) screw, technicians can dial the forward stroke down from its 35 mm maximum to a 15 mm minimum directly on the machine, eliminating the need for shims or part swaps. Because the adjuster only sets the mechanical stop and not the piston area, output force remains identical to a standard SDA of this bore, delivering 2513.3 N of push at 0.5 MPa.
Designed with a short riveted body, this unit saves axial mounting depth where a larger profile cylinder will not fit. It relies on a fixed NBR bumper at each end to decelerate the stroke, which is not an adjustable air cushion. Operating at speeds of 30-500 mm/s, this specific SKU lacks a piston magnet and therefore cannot support sensing switches, though an -S variant is available for reed or electronic solid-state detection.
Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ80X35-20 Technical Specifications
| Model | Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ80X35-20 |
|---|---|
| Series | SDAJ compact adjustable-stroke cylinder |
| Bore size | Ø80 mm |
| Max stroke | 35 mm |
| Adjustable range | 15 – 35 mm |
| Adjuster thread (R) | M20×1.5 |
| Port size | PT3/8 |
| Acting type | Double acting |
|---|---|
| Rod end thread | M14×1.5 F / M22×1.5 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 20 mm. Force is unchanged from a standard SDA of the same bore. Specifications follow the official AirTAC SDAJ datasheet.
Theoretical Output Force (Ø80mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 2513 N | 2268 N |
| 0.7 MPa | 3519 N | — |
| Max (@1.0 MPa) | 513 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 SDAJ80X35-20
| SDAJ | Compact double-acting cylinder with adjustable stroke. |
|---|---|
| 80 | Bore size in mm. |
| ×35 | Maximum stroke length in mm. |
| -20 | 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 SDAJ80X35-20 Is Used
Press Fit Tuning
Dial in the exact 15-35 mm insertion depth for bearing presses on the factory floor without swapping mechanical spacers.
Carton Flap Folding
Adjust the extend stop on the fly to accommodate varying box heights during production changeovers, utilizing the 2513.3 N push force.
Vertical Lift Stops
Set precise upper travel limits for lifting 128.1 kg payloads, relying on the M20x1.5 adjuster screw to define the endpoint.
Is the Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ80X35-20 the Right Cylinder?
When sizing this model, evaluate your force requirements against neighbouring bores. If 2513.3 N push at 0.5 MPa is excessive, stepping down to an SDAJ63 provides 1558.6 N, saving space and air consumption. Conversely, if your payload demands more power, the SDAJ100 offers 3927 N at the same pressure. For this 80 mm bore, the safe working load is approximately 1508 N (about 60% of the 0.5 MPa figure), allowing a vertical lift of roughly 128.1 kg with a 2:1 safety margin.
This cylinder is ideal for setups requiring frequent on-machine stroke tuning between 15 and 35 mm. Confirm your port size is PT3/8 and the rod end thread matches your fixture (female M14x1.5 or male M22x1.5). Note that a plain SDAJ does not hold position or load when air is lost or the valve is centred; the fixed bumper only decelerates near the end of travel. For load holding without live pressure, integrate an external rod lock or a pilot-operated check valve.
Quick checklist
- ✓ Need on-machine stroke fine-tuning?
- ✓ Target position within 15–35 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 M20×1.5 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 SDAJ80X35-20 FAQ
This 80 mm bore cylinder features a PT3/8 air port. It delivers 2513.3 N push and 2267.8 N pull at 0.5 MPa, 3518.6 N push and 3175 N pull at 0.7 MPa, with a theoretical maximum push of 513 kgf at 1.0 MPa.
The R (M20x1.5) screw mechanically shortens the extend stroke from 35 mm down to 15 mm without changing the force output. It is a stop, not a lock; the cylinder cannot hold a load on air loss, and the fixed NBR bumper only decelerates the stroke end.
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