Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ20X100-10S
The AirTAC Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ20X100-10S is a genuine double acting, adjustable stroke standard round-body mini air cylinder with a Ø20mm bore and 100mm stroke, 1/8" air ports and a stainless-steel barrel with a hard-chrome-plated rod for reliable, mildly corrosion-resistant service.
- BoreØ20 mm
- Stroke100 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 MAJ20X100-10S
Built on AirTAC's riveted round-body platform, the MAJ20X100-10S runs double-acting and lets an external stop screw shave the extend stroke by up to 10 mm on site. At 0.5 MPa it pushes 157 N and pulls 131.9 N, rising to 219.8 N at 0.7 MPa; the theoretical ceiling for this 20 mm bore is 32 kgf. Because the magnet is fitted as standard, CMSG, DMSG or EMSG switches clip straight onto the stainless barrel.
Plan around roughly 94 N of real working force at 0.5 MPa rather than the full rating, which matches a part weight of about 8 kg vertical lift with a 2:1 margin. The fixed bumper pads soften stroke-end impact - they decelerate only, they are not an adjustable air cushion like the MAC family offers - and the hard-chrome plated 8 mm rod plus stainless tube handle damp or lightly washed-down spots far better than painted minis.
Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ20X100-10S Technical Specifications
| Model | Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ20X100-10S |
|---|---|
| Series | MAJ mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 100 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 MAJ20X100-10S
| MAJ | Standard round-body mini cylinder (adjustable-stroke). |
|---|---|
| 20 | Bore size in mm. |
| ×100 | Stroke length in mm. |
| -10 | 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 MAJ20X100-10S Is Used
Filler gate alignment
Sets the final open position of a bottle-diverter gate on a bottling line; the 10 mm window lets technicians trim the stop until the sensor at the gate edge reads clean, with 94 N of working force well above gate friction.
PCB reject kicker
Flicks rejected boards off a test-station conveyor into a bin. The quick extend at up to 800 mm/s clears the belt lane, and the fixed bumper keeps the kicker from hammering its own housing at the returned end.
Bench fixture clamp
Clamps small aluminium brackets before a drilling op on a workbench jig. Around 94 N of usable clamp force at 0.5 MPa holds light parts, and the stainless barrel tolerates cutting-fluid mist.
Is the Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ20X100-10S the Right Cylinder?
If 157 N at 0.5 MPa is more than the job needs, the 16 mm bore MAJ gives 100.5 N; if the load grows beyond a 94 N working force with margin, step up to the 25 mm bore at 245.3 N. FA flange and LB foot mounts plus I and Y rod knuckles cover the usual fixings. Remember the adjuster is a mechanical end stop for the extend stroke, not a lock - with air off, the rod can still be pushed back.
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 MAJ20X100-10S FAQ
At 0.5 MPa the 20 mm bore pushes 157 N and pulls 131.9 N. Raise the supply to 0.7 MPa and those figures become 219.8 N push and 184.7 N pull. The theoretical maximum at 1.0 MPa is 32 kgf. Air supply runs 0.15-1.0 MPa (22-145 psi), proof pressure is 1.5 MPa (215 psi), and rod speed spans 30-800 mm/s.
No. The MAJ carries fixed anti-impact bumper pads that decelerate the piston at each end of travel. They soften impact but cannot be tuned; if the machine needs adjustable pneumatic cushioning, the AirTAC MACJ family combines the adjustable extend stroke with air cushions.
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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