Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ40X100-100S
The AirTAC Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ40X100-100S is a genuine double acting, adjustable stroke standard round-body mini air cylinder with a Ø40mm 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.
- BoreØ40 mm
- Stroke100 mm
- Port size1/8"
- Acting typeDouble acting, adjustable stroke
- Rod threadM12×1.25
- 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 MAJ40X100-100S
With a 100 mm adjustment window, the MAJ40X100-100S lets you dial the extend stroke anywhere from 0 to 100 mm shorter than the ordered travel using an external stop screw - no disassembly, no reordering. The cylinder is double-acting and pushes 628 N at 0.5 MPa (880 N at 0.7 MPa), the strongest bore in the MA series.
The stainless round barrel and hard-chrome plated rod (20 um) resist mild corrosion in damp or washdown-prone cells, and the riveted aluminium covers keep the round body compact. At 0.5 MPa, plan on roughly 377 N of real work rather than the full 628 N rating. The built-in magnet is standard, so CMSG / DMSG / EMSG switches mount without special ordering. Fixed anti-impact pads soften stroke-end impact; for adjustable air cushioning see the MACJ family.
Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ40X100-100S Technical Specifications
| Model | Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ40X100-100S |
|---|---|
| Series | MAJ mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 100 mm |
| Acting type | Double acting, adjustable stroke |
| Port size | 1/8" |
| Rod thread | M12×1.25 |
| 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 500 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 (Ø40mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa | 880 N | 739 N |
| Max (@1.0 MPa) | 128 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 MAJ40X100-100S
| MAJ | Standard round-body mini cylinder (adjustable-stroke). |
|---|---|
| 40 | Bore size in mm. |
| ×100 | 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 MAJ40X100-100S Is Used
Gate and door actuation on packaging machines
A full 100 mm trim window lets line technicians shorten gate travel on the fly when product sizes change, backed by 628 N of push force at 0.5 MPa.
Bench-top press fixture for aluminium crimping
880 N at 0.7 MPa presses terminals and crimps light aluminium fittings, while the stop screw sets exact press depth anywhere up to 100 mm.
Position-verified ejector on assembly lines
The standard magnet reads with CMSG or DMSG switches for end-of-stroke confirmation, and fixed bumper pads absorb the eject impact at speed.
Is the Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ40X100-100S the Right Cylinder?
Size down to the MAJ32X100 (402 N push at 0.5 MPa) if the load is under about 240 N; bore 40 is the largest MA bore, so nothing steps up from here. The stop screw trims the extend stroke only within the ordered -100 window and acts as a mechanical end stop, not a mid-stroke lock - on air loss the rod still drifts, so add a locking solution for held loads. FA flange or LB foot mounting, with I and Y rod knuckles available; speed 30-800 mm/s. Keep side loads off the 16 mm rod to protect the bushings over the 100 mm travel.
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 MAJ40X100-100S FAQ
At 0.5 MPa it pushes 628 N and pulls 528 N; at 0.7 MPa push rises to 880 N and pull to 739 N. The theoretical maximum at 1.0 MPa is 128 kgf. Operating pressure spans 0.15-1.0 MPa (22-145 psi), speed 30-800 mm/s, and the 1/8" ports are fixed by the 40 mm bore.
An external stop screw limits rod extension at any point from 0 to 100 mm short of the ordered stroke, set with a wrench on site. It is a mechanical end stop for the extend direction; it will not lengthen travel past 100 mm and it is not a brake - the rod still drifts if air is lost.
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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