Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ20X150-100S
The AirTAC Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ20X150-100S is a genuine double acting, adjustable stroke standard round-body mini air cylinder with a Ø20mm bore and 150mm stroke, 1/8" air ports and a stainless-steel barrel with a hard-chrome-plated rod for reliable, mildly corrosion-resistant service.
- BoreØ20 mm
- Stroke150 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 MAJ20X150-100S
With a stop screw on the cover, the MAJ20X150-100S lets you shorten the extend stroke anywhere within a generous 100 mm window after installation - dial 50 mm for a short press move today and open it up to the full 150 mm tomorrow without ordering a new cylinder. Air drives the rod both ways, so retraction is powered too. At 0.5 MPa the 20 mm bore piston delivers 157 N on extend, enough for light clamping, ejecting and part-seating jobs on compact fixtures.
The stainless-steel round barrel is rolled onto aluminium covers, giving a slim riveted body that resists washdown splash far better than painted minis. A hard-chrome plated 8 mm rod (20 um) runs on grease-retaining two-way seals, and fixed bumper pads take the sting out of stroke ends - these decelerate only, they are not adjustable cushions. Size real work at roughly 94 N at 0.5 MPa (60 percent of the rating), or plan on lifting about 8 kg vertically with a 2:1 margin.
Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ20X150-100S Technical Specifications
| Model | Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ20X150-100S |
|---|---|
| Series | MAJ mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 150 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 MAJ20X150-100S
| MAJ | Standard round-body mini cylinder (adjustable-stroke). |
|---|---|
| 20 | Bore size in mm. |
| ×150 | Stroke length in mm. |
| -100 | 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 MAJ20X150-100S Is Used
Stroke-tuned ejection
On a small stamping die or injection fixture, back the stop screw in or out within the 100 mm window to set exactly how far the ejector pusher travels per part.
Packaging gate actuator
Short-stroke gate and diverter duty on bottling lines: 157 N at 0.5 MPa swings lightweight gates, and the magnet-and-switch feedback confirms the gate seated.
Lab feeder slide
Feed vials or slides in test rigs where stroke length is revised often - the external adjuster changes throw in minutes, at speeds of 30-800 mm/s.
Is the Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ20X150-100S the Right Cylinder?
For lighter duty, the bore 16 MAJ (100.5 N push at 0.5 MPa) saves space; when 157 N is marginal, step up to the bore 25 MAJ25 at 245.3 N. The 100 mm trim window suits fixtures where the exact stopping point is tuned on the machine. The stop screw is a mechanical end stop for the extend stroke only - it will not lock the load if air pressure drops. FA flange or LB foot mounting plus standard I and Y rod knuckles cover most fixture needs, and the built-in magnet accepts CMSG, DMSG or EMSG switches with no special-order piston.
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 MAJ20X150-100S FAQ
At 0.5 MPa it pushes 157 N and pulls 131.9 N; at 0.7 MPa that rises to 219.8 N push and 184.7 N pull. The theoretical maximum at 1.0 MPa is 32 kgf. It is double-acting, runs on 0.15-1.0 MPa (22-145 psi) air at 30-800 mm/s, and the extend stroke is trimmed by the external stop screw within the 100 mm window.
Yes - every MAJ cylinder carries a built-in piston magnet as standard, so AirTAC CMSG, DMSG and EMSG switches clip onto the stainless barrel without a special-order piston. Because the adjuster is only a mechanical end stop (not a mid-stroke lock), use switches to confirm positions if the load must be verified after a pressure loss.
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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