Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ40X100-30S
The AirTAC Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ40X100-30S 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 MAJ40X100-30S
Setup flexibility drives the -30 suffix on the MAJ40X100-30S: an external stop screw trims up to 30 mm from the 100 mm extend stroke after installation, a common choice for clamping fixtures that need on-site calibration. Output at 0.5 MPa is 628 N push and 528 N pull, double-acting on both strokes.
The riveted round body pairs a stainless barrel with a 20 um hard-chrome rod, resisting corrosion in damp plants and light washdown where painted aluminium minis degrade. For sizing, the 628 N push translates to about 64 kgf of vertical capability; at a 2:1 margin, plan to lift around 32 kg. A magnet comes standard on every MA cylinder, feeding CMSG / DMSG / EMSG switches without special order.
Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ40X100-30S Technical Specifications
| Model | Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ40X100-30S |
|---|---|
| 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 MAJ40X100-30S
| MAJ | Standard round-body mini cylinder (adjustable-stroke). |
|---|---|
| 40 | Bore size in mm. |
| ×100 | Stroke length in mm. |
| -30 | 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 MAJ40X100-30S Is Used
Woodworking clamp bar on CNC door frames
880 N at 0.7 MPa secures solid-wood frames, and the 30 mm window accommodates different stile widths without re-fixturing.
Rotary-index dial tooling on bottling lines
Built-in magnet and DMSG sensing confirm each station cycle while the stainless barrel stands up to constant rinse-down.
Pallet diverter arm on distribution conveyors
628 N push at 0.5 MPa swings pallets to the kickback lane, and bumper pads damp the divert impact for quiet operation.
Is the Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ40X100-30S the Right Cylinder?
Compare directly: MAJ32X100 gives 402 N push at 0.5 MPa while this 40 mm bore gives 628 N - the largest in the MA line. The 30 mm adjuster shortens extension only and will not act as a position brake under air loss. FA flange or LB foot mounting with I / Y rod knuckles covers most fixtures, and at 100 mm stroke keep side loading minimal to protect the 16 mm rod and bushings.
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 MAJ40X100-30S FAQ
Push 628 N and pull 528 N at 0.5 MPa; push 880 N and pull 739 N at 0.7 MPa; 128 kgf theoretical maximum at 1.0 MPa. Operating pressure 0.15-1.0 MPa (22-145 psi), speed 30-800 mm/s, rod 16 mm, ports 1/8".
Every MA-series piston includes a magnet as standard, so CMSG, DMSG or EMSG reed/electronic switches clip onto the stainless barrel to signal extend and retract positions - no special-order piston needed. This keeps the 30 mm adjustable stroke fully monitored in clamps, gates and indexers.
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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