Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ100X50-20B
The AirTAC Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ100X50-20B 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 30 to 50 mm on the machine — no shims, no part change.
- BoreØ100 mm
- Max stroke50 mm
- Adjustable range30–50 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 SDAJ100X50-20B
The AirTAC SDAJ100X50-20B is a double-acting, single-rod compact cylinder featuring an external adjustable extend stop. By turning the R (M27x2.0) screw, you shorten the forward stroke on-site across a 30 to 50 mm window without swapping shims or components. Because the adjuster dictates the mechanical stop rather than the piston area, output force remains identical to a standard SDA of this bore, yielding 3927 N of push at 0.5 MPa.
This variant features a male M26x1.5 piston rod thread and a PT3/8 air port. The short riveted body minimizes axial mounting depth where larger profile or round-body units fail to fit. End-of-travel deceleration relies on a fixed NBR bumper, which absorbs shock but is not an adjustable air cushion. Note this SKU lacks a piston magnet, so magnetic sensing is unsupported.
Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ100X50-20B Technical Specifications
| Model | Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ100X50-20B |
|---|---|
| Series | SDAJ compact adjustable-stroke cylinder |
| Bore size | Ø100 mm |
| Max stroke | 50 mm |
| Adjustable range | 30 – 50 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 20 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 SDAJ100X50-20B
| SDAJ | Compact double-acting cylinder with adjustable stroke. |
|---|---|
| 100 | Bore size in mm. |
| ×50 | 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 SDAJ100X50-20B Is Used
Heavy Press Fit Tuning
Dial in the exact 30-50 mm extend position during machine commissioning to seat heavy bearings without over-traveling, leveraging the 3927 N push force.
High-Force Changeover Stops
Adjust the mechanical stop on-site for different product families on a shared line, avoiding part changes while maintaining robust clamping pressure.
Vertical Lift Positioning
Set precise lower endpoints for heavy vertical lifts. With a 2:1 safety margin, the cylinder can manage a vertical lift of roughly 200.2 kg.
Is the Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ100X50-20B the Right Cylinder?
When sizing this unit, evaluate both neighboring bores. Stepping down to the SDAJ80 provides 2513.3 N of push at 0.5 MPa, whereas this 100 mm bore delivers 3927 N. If your application requires extreme force, stepping up to a larger custom bore is necessary, as 100 mm is the largest standard SDAJ offering. Choose this specific model when your machinery requires heavy push force combined with on-site extend length tuning between 30 and 50 mm.
Confirm the 50 mm maximum stroke, 20 mm adjust window, PT3/8 port, and the male M26x1.5 rod thread for your mounting interface. Operating speed spans 30-500 mm/s. A plain SDAJ does not hold a load if air pressure drops or the valve centers; the piston drifts. For suspended loads, integrate an external rod lock or pilot-operated check valve, as the fixed NBR bumper only decelerates near the end of travel and provides no locking function.
Quick checklist
- ✓ Need on-machine stroke fine-tuning?
- ✓ Target position within 30–50 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 SDAJ100X50-20B FAQ
This 100 mm bore cylinder provides 3927 N push and 3524.9 N pull at 0.5 MPa, and 5497.8 N push at 0.7 MPa. The theoretical maximum push is 801 kgf at 1.0 MPa. Operating pressure ranges from 0.15 to 1.0 MPa, with a proof pressure of 1.5 MPa and a speed range of 30-500 mm/s.
The R (M27x2.0) screw mechanically limits the extend stroke, allowing you to set the forward end position anywhere between 30 and 50 mm. This specific SKU lacks a piston magnet, so it cannot accept reed or electronic switches; you must select the -S option code for sensing capabilities.
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