Airtac SDA Ultra Thin Cylinder SDA20X15
The AirTAC SDA Ultra Thin Cylinder SDA20X15 is a genuine double-acting COMPACT (thin) air cylinder with a Ø20mm bore and 15mm stroke, M5×0.8 air ports and a riveted short body that saves mounting depth. Sensor slots around the body accept magnetic switches for position sensing.
- BoreØ20 mm
- Stroke15 mm
- Port sizeM5×0.8
- Acting typeDouble acting
- Rod threadM4×0.7 (F) / M6×1.0 (B)
- 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 SDA Ultra Thin Cylinder SDA20X15
The AirTAC SDA20X15 is a double-acting, single-rod compact cylinder engineered for tight axial spaces. It provides 157.1 N of push force and 131.9 N of pull force at 0.5 MPa, making it suitable for light-duty positioning. The riveted unibody design integrates the barrel, rear cover, piston, and rod to minimize overall length compared to conventional round-body units.
This 20 mm bore model features an 8 mm piston rod and an M5x0.8 air port. End-of-travel deceleration is handled by a fixed NBR bumper rather than an adjustable air cushion. This specific SKU is supplied without a piston magnet, so it cannot directly interface with magnetic position switches.
Airtac SDA Ultra Thin Cylinder SDA20X15 Technical Specifications
| Model | Airtac SDA Ultra Thin Cylinder SDA20X15 |
|---|---|
| Series | SDA compact (thin) cylinder |
| Bore size | Ø20 mm |
| Stroke | 15 mm |
| Acting type | Double acting |
| Port size | M5×0.8 |
| Rod end thread | M4×0.7 female / M6×1.0 male (B) |
| 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 – 500 mm/s |
| Cushion | Fixed NBR bumper (both ends) |
| Max standard stroke | Up to 90 mm |
Specifications follow the official AirTAC SDA compact-cylinder datasheet. Confirm against the product label before installation. Port thread: PT (standard). Rod: female thread (blank) / male thread (B).
Theoretical Output Force (Ø20mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 157 N | 132 N |
| 0.7 MPa | 220 N | — |
| Max (@1.0 MPa) | 32 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SDA Ultra Thin Cylinder SDA20X15
| SDA | Compact (thin) double-acting cylinder series. |
|---|---|
| 20 | Bore size in mm. |
| ×15 | Stroke length in mm. |
| S | Built-in magnet for magnetic-switch position sensing (omit = no magnet). |
| B | Male-thread piston rod (omit = female-thread rod). |
Thread: PT standard. Related SDA-family variants: SSA (single-acting push), STA (single-acting pull), SDAD (double rod), SDAJ (adjustable stroke), SDAT (duplex), SDAW (duplex-end).
Where the Airtac SDA Ultra Thin Cylinder SDA20X15 Is Used
PCB Depaneling Ejector
Uses the short 15 mm stroke to push singulated circuit boards out of a routing fixture, capitalizing on the minimal axial footprint to fit between dense tooling.
Blister Pack Flap Tucking
Deploys 157.1 N of push at 0.5 MPa to fold cardboard inserts behind pharmaceutical blister packs on a high-speed cartoning line.
Lab Dispenser Valve Actuation
Cycles rapidly to open and close a precision metering valve for reagent dosing, where the 8 mm rod and compact body prevent interference with surrounding analytical equipment.
Is the Airtac SDA Ultra Thin Cylinder SDA20X15 the Right Cylinder?
When sizing this actuator, evaluate your force margins carefully. Stepping down to the SDA16 yields 100.5 N of push at 0.5 MPa, while stepping up to the SDA25 provides 245.4 N. Confirm your ordering essentials: 20 mm bore, 15 mm stroke, M5x0.8 port, female M4x0.7 rod thread, and no magnet.
Keep in mind that a standard double-acting cylinder does not hold its position if air pressure drops or the directional valve is centered. The piston will drift, and the fixed NBR bumper only decelerates the stroke near its end without acting as a lock. If your application requires strict load holding on air loss, specify an external rod lock or a pilot-operated check valve.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Short-body depth vs. a round-body cylinder
- ✓ Port/thread type (PT)
- ✓ Magnet (S) for sensors?
- ✓ Female (blank) or male (B) rod thread
- ✓ Side load — avoid on a compact rod
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Avoid side load on the short piston rod.
- check Very long strokes are unsuitable for the compact body.
- check Front/rear covers are riveted — do not dismantle.
- check Installation by qualified personnel per AirTAC docs.
Airtac SDA Ultra Thin Cylinder SDA20X15 FAQ
At 0.5 MPa, this 20 mm bore cylinder generates 157.1 N of push force and 131.9 N of pull force. At 0.7 MPa, push increases to 219.9 N. The theoretical maximum push is 32 kgf at 1.0 MPa. Operating pressure ranges from 0.15 to 1.0 MPa, with a speed range of 30-500 mm/s.
No. This model uses a fixed NBR bumper at each end to decelerate the stroke, which is not field-adjustable; for high-energy cycles, slow the approach or add an external shock absorber. Additionally, this specific SKU lacks the internal magnet, so it cannot accept reed or electronic switches without upgrading to the -S variant.
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1-Year Warranty
Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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