Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ16X45-20S
The AirTAC Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ16X45-20S is a genuine double acting, adjustable stroke standard round-body mini air cylinder with a Ø16mm bore and 45mm stroke, M5×0.8 air ports and a stainless-steel barrel with a hard-chrome-plated rod for reliable, mildly corrosion-resistant service.
- BoreØ16 mm
- Stroke45 mm
- Port sizeM5×0.8
- Acting typeDouble acting, adjustable stroke
- Rod threadM6×1.0
- CushionFixed anti-impact bumper pads
- 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 MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ16X45-20S
Twenty millimetres of on-site trim gives the MAJ16X45-20S its edge: order one 45 mm cylinder and dial the extend stroke anywhere within a 20 mm shorter envelope using the external stop screw. This 16 mm bore unit is double acting, pushing 100.5 N and pulling 86.4 N at 0.5 MPa, with fixed bumper pads softening both ends of travel.
Build quality comes from a stainless-steel tube rolled onto aluminium covers, with a hard-chrome plated carbon-steel rod inside - a spec that handles damp food-plant air far better than coated-steel minis. For sizing, treat about 60 N as the practical working force at 0.5 MPa, which translates to near 5 kg of vertical lift with margin. The magnet is fitted as standard, so CMSG, DMSG or EMSG switches drop straight on.
Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ16X45-20S Technical Specifications
| Model | Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ16X45-20S |
|---|---|
| Series | MAJ mini cylinder |
| Bore size | Ø16 mm |
| Stroke | 45 mm |
| Acting type | Double acting, adjustable stroke |
| Port size | M5×0.8 |
| Rod thread | M6×1.0 |
| 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 | Fixed anti-impact bumper pads |
| Max standard stroke | Up to 300 mm |
Specifications follow the official AirTAC MA-series datasheet. Barrel: stainless-steel tube (round-body, riveted rolling-packed construction); piston rod: carbon steel with 20µm hard-chrome plating; covers: aluminium alloy. Thread options: PT (blank) / G / NPT. Every MA-series cylinder ships with a built-in magnet for CMSG / DMSG / EMSG position sensors.
Theoretical Output Force (Ø16mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 101 N | 86 N |
| 0.7 MPa | 141 N | 121 N |
| Max (@1.0 MPa) | 21 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ16X45-20S
| MAJ | Standard round-body mini cylinder (adjustable-stroke). |
|---|---|
| 16 | Bore size in mm. |
| ×45 | Stroke length in mm. |
| -20 | Adjustable stroke window (mm the extend stroke can be shortened on site). |
| -S | Built-in magnet for CMSG / DMSG / EMSG sensors (standard on MA series). |
| CA / U / CM | Back-cover type: CA pivot, U flat-end, CM round-end. |
MA-family variants: MA / MAC (double acting ±cushion), MSA / MTA (single acting push / pull), MAD / MACD (double rod ±cushion), MAJ / MACJ (adjustable stroke ±cushion), MAR (cushioned with integrated F/U mount). Mounting accessories: FA flange, LB foot, SDB pivot; plus I and Y knuckles. Thread PT (blank) / G / NPT.
Where the Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ16X45-20S Is Used
Ejector on an SMT magazine loader
Push finished PCB magazines off an elevator shelf; 100.5 N moves the light magazine and the 20 mm window tunes push-off depth per magazine type.
Cap press check station
Press-test caps on small cosmetic bottles in packaging QA; the bumper pads cut end-of-stroke noise during fast cycling.
Diverter on a small roller conveyor
Kick one-of-two parcels at a sort point; the 86.4 N pull force retracts the arm briskly against a light return setup.
Is the Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ16X45-20S the Right Cylinder?
For heavier jobs the 20 mm bore raises push to 157.0 N at 0.5 MPa against 100.5 N here; 16 mm is the smallest MA bore available. Keep in mind the trim screw only shortens extension - it is not a position lock, and an unpowered piston will still coast. FA flange or LB foot mounting, I or Y knuckles on the rod, and the standard magnet completing the switch package are all listed on the datasheet.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT / G / NPT)
- ✓ Magnet (-S) is standard for sensors
- ✓ Back cover (CA/U/CM) & mount (FA/LB/SDB)
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 piston rod.
- check Do not dismantle the riveted front/back covers.
- check Bumper models: keep speed within the rated range.
- check Installation by qualified personnel per AirTAC docs.
Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ16X45-20S FAQ
At 0.5 MPa: 100.5 N push, 86.4 N pull. At 0.7 MPa: 140.7 N push, 120.9 N pull. The 1.0 MPa theoretical peak is 20.5 kgf. Air supply is 40 um filtered, port M5x0.8, male rod thread M6x1.0.
For occasional splash and humidity, yes - the stainless tube and hard-chrome plated rod resist the corrosion that pits painted mini bodies, and the rolled-on covers keep the barrel sealed. Run it on 40 um filtered air at 0.15-1.0 MPa (22-145 psi) and it will cope with damp plant air; for continuous high-pressure washdown, confirm the exact duty from the datasheet first.
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Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
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Most inquiries answered within 7-8 hours.
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