Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ20X160-20S
The AirTAC Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ20X160-20S is a genuine double acting, adjustable stroke standard round-body mini air cylinder with a Ø20mm bore and 160mm stroke, 1/8" air ports and a stainless-steel barrel with a hard-chrome-plated rod for reliable, mildly corrosion-resistant service.
- BoreØ20 mm
- Stroke160 mm
- Port size1/8"
- Acting typeDouble acting, adjustable stroke
- Rod threadM8×1.25
- 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 MAJ20X160-20S
Double-acting by design, the MAJ20X160-20S gives you a 160 mm stroke with an on-site trim of up to 20 mm, so one cylinder can serve two fixture positions. The 20 mm bore develops 157 N forward and 131.9 N back at 0.5 MPa, rising to 219.8 N if you feed it 0.7 MPa. Its stainless round barrel plus a hard-chrome carbon-steel rod shrug off mild corrosion, a genuine edge over painted minis in humid food or outdoor installations.
The riveted aluminium covers and stainless block keep the body compact and sealed, while fixed anti-impact pads take the sting out of stroke ends (they slow the piston, they are not the adjustable cushion you would find on the MACJ). Think in terms of about 94 N of working force at 0.5 MPa for reliable duty, which corresponds to lifting roughly 8 kg vertically once a 2:1 margin is applied to the 16 kgf peak lift capability.
Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ20X160-20S Technical Specifications
| Model | Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ20X160-20S |
|---|---|
| Series | MAJ mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 160 mm |
| Acting type | Double acting, adjustable stroke |
| Port size | 1/8" |
| Rod thread | M8×1.25 |
| 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 (Ø20mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 157 N | 132 N |
| 0.7 MPa | 220 N | 185 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 MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ20X160-20S
| MAJ | Standard round-body mini cylinder (adjustable-stroke). |
|---|---|
| 20 | Bore size in mm. |
| ×160 | 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 MAJ20X160-20S Is Used
Fixture clamp on a drill jig
Holds aluminium brackets against a drill jig with about 94 N of reliable working force at 0.5 MPa.
Product stopper
Drops in as a stop on a conveyor for a 160 mm approach, trimming the stroke 20 mm to clear passing totes.
Lid press-down
Snaps clip-on lids onto small enclosures at end of line; anti-impact bumpers keep the seating gentle.
Is the Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ20X160-20S the Right Cylinder?
Compare both directions before you buy: the 16 mm MAJ gives 100.5 N forward at 0.5 MPa, and the 25 mm MAJ reaches 245.3 N, so the 20 mm bore at 157 N sits comfortably between for light automation. The -20 trim window fits two-step fixtures. Foot (LB) or flange (FA) mounting keeps installation simple, and the standard magnet accepts CMSG / DMSG / EMSG reed switches for end-of-stroke confirmation. Do not treat the stop screw as a brake - it sets where the rod stops on extend, but the piston can still be pushed around when pressure is lost. With a 160 mm stroke, keep side loads low and guide the load externally to protect the 8 mm rod.
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 MAJ20X160-20S FAQ
At 0.5 MPa the push force is 157 N and the pull 131.9 N; at 0.7 MPa expect 219.8 N and 184.7 N; the 1.0 MPa theoretical ceiling is 32 kgf. For reliable duty size around 94 N. Operating range 0.15-1.0 MPa (22-145 psi), proof 1.5 MPa (215 psi), speed 30-800 mm/s.
A stainless-steel round barrel riveted to aluminium-alloy covers, with a hard-chrome plated carbon-steel rod - good news for damp or lightly washed-down areas. Every unit includes a built-in magnet, so CMSG, DMSG or EMSG switches clip on without any special piston order.
Authorized Export Seller
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.
Fast Reply
Most inquiries answered within 7-8 hours.
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