Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ20X15-10S
The AirTAC Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ20X15-10S is a genuine double acting, adjustable stroke standard round-body mini air cylinder with a Ø20mm bore and 15mm stroke, 1/8" air ports and a stainless-steel barrel with a hard-chrome-plated rod for reliable, mildly corrosion-resistant service.
- BoreØ20 mm
- Stroke15 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 MAJ20X15-10S
Fifteen millimetres of travel with a 10 mm trim range makes this bore 20 MA-series cylinder a natural fit for confirm-and-clamp positions where every millimetre counts. It is double-acting, pushing 157 N and pulling 131.9 N at 0.5 MPa (219.8 N / 184.7 N on 0.7 MPa), and the external stop screw lets maintenance shorten the extend stroke on site instead of ordering a new part.
The riveted stainless barrel and 20 um hard-chrome rod handle splash zones that rust painted minis, and the built-in magnet means CMSG / DMSG / EMSG switches bolt on from day one. Fixed bumper pads soften the ends of the very short travel; adjustable cushioning is a MACJ feature, not this one. Realistic sizing at 0.5 MPa: budget about 94 N for the work itself, which keeps a payload of roughly 8 kg within vertical reach once a 2:1 margin is applied.
Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ20X15-10S Technical Specifications
| Model | Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ20X15-10S |
|---|---|
| Series | MAJ mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 15 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 MAJ20X15-10S
| MAJ | Standard round-body mini cylinder (adjustable-stroke). |
|---|---|
| 20 | Bore size in mm. |
| ×15 | 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 MAJ20X15-10S Is Used
Part-present flag beside a CNC vise
Actuating a part-present flag next to a CNC vise, with the 10 mm window matching both worn and newly tooled fixture positions.
Reject gate on a blister packaging line
Nudging rejected blister packs off a pharmaceutical conveyor; the chrome-plated rod tolerates the line's cleaning agents.
Gasket pre-seat before a press closes
Seating a gasket ahead of a press head, where the 15 mm stroke and 157 N push are matched to a light, easily marred part.
Is the Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ20X15-10S the Right Cylinder?
Between the 16 mm bore (100.5 N push at 0.5 MPa) and the 25 mm (245.3 N), the 20 mm class here carries mid-weight clamps with a trim window of just 10 mm. At 15 mm of stroke there is little rod exposure, so side-load worry is minimal, but still seat the LB foot or FA flange square. Mounting choices are FA, LB and I / Y knuckles. Note the stop screw is an extend-stroke end stop, not a mid-travel lock; drifting under lost air remains possible.
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 MAJ20X15-10S FAQ
Stroke length does not change force: 157 N push and 131.9 N pull at 0.5 MPa, 219.8 N and 184.7 N at 0.7 MPa, with a 32.0 kgf theoretical maximum at 1.0 MPa. Air supply is 0.15-1.0 MPa (22-145 psi).
An external stop screw limits how far the rod extends, trimming the 15 mm stroke anywhere within the 10 mm window. It is a mechanical end stop - position is not held on air loss, and the fixed bumper pads simply soften the end contact.
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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