Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ20X150-10S
The AirTAC Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ20X150-10S 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 MAJ20X150-10S
On the MAJ20X150-10S the adjuster window is deliberately narrow - just 10 mm - which suits jobs where the stop point needs final trim rather than wide tuning: a gauge probe, a marking tip, a nesting stop that must meet the part precisely. The cylinder still runs the full 150 mm stroke in double-acting mode, pushing 157 N at 0.5 MPa, and retraction is air-powered as well. Ports are 1/8" on this bore, with an M8x1.25 male rod thread.
AirTAC builds the 20 mm bore body from a stainless round barrel riveted to aluminium covers, so the package stays compact and shrugs off the splashes that peel paint from ordinary minis. The 8 mm hard-chrome rod slides on grease-storing seals, and fixed bumper pads cushion stroke ends without adding an adjustable cushion (that is the MACJ family). For sizing, figure on about 94 N of usable push at 0.5 MPa, or vertical lifts near 8 kg with a 2:1 margin.
Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ20X150-10S Technical Specifications
| Model | Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ20X150-10S |
|---|---|
| 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 MAJ20X150-10S
| MAJ | Standard round-body mini cylinder (adjustable-stroke). |
|---|---|
| 20 | Bore size in mm. |
| ×150 | 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 MAJ20X150-10S Is Used
Gauge probe stop
On in-line dimensional checking stations, the 10 mm trim lets a technician set the probe tip's final approach to the part without repositioning the whole cylinder.
Marking stamp fixture
Number or date stamps on cartons and extrusions need a fixed, repeatable bottom position - adjust once within the 10 mm window as the tooling wears.
Nesting stop on assembly cells
Use as a part-nesting stop in a rotary indexing table; 157 N at 0.5 MPa holds light aluminium housings firmly against the fixture.
Is the Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ20X150-10S the Right Cylinder?
Between the bore 16 MAJ at 100.5 N push and the bore 25 MAJ25 at 245.3 N (both 0.5 MPa), the 20 mm bore sits mid-range for light automation. The 10 mm window is for precision trim, not wide stroke tuning - if the stopping point may move 50 mm or more, order a wider window instead. Mount via FA flange or LB foot; I and Y knuckles adapt the 8 mm rod. Remember the stop screw halts the extend stroke mechanically but does not hold the piston against air loss.
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 MAJ20X150-10S FAQ
The 20 mm bore pushes 157 N and pulls 131.9 N at 0.5 MPa; at 0.7 MPa expect 219.8 N push and 184.7 N pull. Peak theoretical force at 1.0 MPa is 32 kgf. Air supply 0.15-1.0 MPa (22-145 psi), speed 30-800 mm/s, and the extend stroke adjusts within the ordered 10 mm window via the external stop screw.
Fixed anti-impact bumper pads are fitted at both ends; they absorb the end-of-stroke shock but are not adjustable air cushions - order from the MACJ range if you need cushioning you can tune. The bumpers simply decelerate the piston, which helps the 150 mm stroke run cleanly across the whole 30-800 mm/s speed range.
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.
Request a Quote for Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ20X150-10S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.