Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ40X130-20S
The AirTAC Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ40X130-20S is a genuine double acting, adjustable stroke standard round-body mini air cylinder with a Ø40mm bore and 130mm stroke, 1/8" air ports and a stainless-steel barrel with a hard-chrome-plated rod for reliable, mildly corrosion-resistant service.
- BoreØ40 mm
- Stroke130 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 MAJ40X130-20S
A 40 mm bore MAJ with a 130 mm stroke and a 20 mm on-site trim: an external stop screw shortens the extend stroke anywhere inside that 20 mm window, so one cylinder covers several part positions without hardware changes. The action is double-acting - air drives the rod out and pulls it back - and fixed bumper pads take the sting off stroke end (they decelerate only; an adjustable cushion belongs to the MAC family). At 0.5 MPa it pushes 628 N and pulls 528 N; at 0.7 MPa push climbs to 880 N.
The riveted round body pairs a stainless-steel barrel with a 16 mm hard-chrome plated rod, so it shrugs off the damp and washdown that pit painted-steel minis. Every MAJ ships with the magnet built in, so CMSG, DMSG or EMSG switches clip straight on without a special-order piston. In practice plan around 377 N of usable push at 0.5 MPa; keep a 2:1 margin and that is a vertical lift of about 32 kg, enough to raise a loaded fixture tray or a small stack of castings between stations.
Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ40X130-20S Technical Specifications
| Model | Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ40X130-20S |
|---|---|
| Series | MAJ mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 130 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 MAJ40X130-20S
| MAJ | Standard round-body mini cylinder (adjustable-stroke). |
|---|---|
| 40 | Bore size in mm. |
| ×130 | Stroke length in mm. |
| -20 | 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 MAJ40X130-20S Is Used
Weld fixture clamping
Clamps car-body brackets in a robotic weld cell; the 20 mm trim lets setup crews fine-tune clamp height after fixturing, with 628 N of push at 0.5 MPa holding the joint closed.
Lift-and-present tower
Raises a pallet tray of roughly 32 kg between an assembly line and an inspection camera, using the full 130 mm stroke with the stop screw set just below the sensor height.
Conveyor reject gate
Kicks off-the-shelf cartons sideways on a packaging conveyor; the trim window positions the gate face to match carton width without shimming the mount.
Is the Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ40X130-20S the Right Cylinder?
At 628 N push (0.5 MPa) this bore tops the MA range - if 402 N from a MAJ32X130 is enough, the smaller bore saves air, since no larger MA bore exists. Mount on an FA flange for a rigid face fixing or LB feet for a base-mounted line, and I or Y rod knuckles thread onto the M12x1.25 male rod. The stop screw is a mechanical end stop for the extend stroke, not a mid-stroke lock, so the rod still drifts if supply air is lost. Over 130 mm of travel, guide side loads separately or the hard-chrome rod sees bending it was never sized for.
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 MAJ40X130-20S FAQ
At 0.5 MPa: 628 N push, 528 N pull. At 0.7 MPa: 880 N push, 739 N pull. The theoretical maximum is 128.1 kgf at 1.0 MPa. It runs on air filtered to 40 um at 0.15-1.0 MPa (22-145 psi), proof pressure 1.5 MPa (215 psi), rod speed 30-800 mm/s, temperature -20 to +70 C.
No. The magnet is built in as standard on every MA-series cylinder, so AirTAC CMSG, DMSG and EMSG switches mount directly on the stainless barrel - no special-order sensing piston, no retrofit.
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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