Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ40X500-30S
The AirTAC Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ40X500-30S is a genuine double acting, adjustable stroke standard round-body mini air cylinder with a Ø40mm bore and 500mm stroke, 1/8" air ports and a stainless-steel barrel with a hard-chrome-plated rod for reliable, mildly corrosion-resistant service.
- BoreØ40 mm
- Stroke500 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 MAJ40X500-30S
Set the extend stop inside a 30 mm band with the MAJ40X500-30S, a double-acting adjustable-stroke mini cylinder in the 500 mm class. At 0.5 MPa the 40 mm bore yields 628 N forward and 528 N return; halved for a 2:1 margin, that equates to lifting about 32 kg vertically, a handy yardstick when matching real part weights. It runs on 0.15-1.0 MPa (22-145 psi) filtered air at 30-800 mm/s.
Impact at each end of travel is taken by fixed bumper pads - these decelerate the piston but are not adjustable air cushions, a role reserved for the MACJ family. Inside, a two-way grease-retaining piston seal rides a hard-chrome steel rod through a stainless rolled barrel, and the standard magnet reads out via CMSG or DMSG switches the day it is installed.
Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ40X500-30S Technical Specifications
| Model | Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ40X500-30S |
|---|---|
| Series | MAJ mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 500 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 MAJ40X500-30S
| MAJ | Standard round-body mini cylinder (adjustable-stroke). |
|---|---|
| 40 | Bore size in mm. |
| ×500 | 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 MAJ40X500-30S Is Used
Battery-bay cap lifter
Raises a 15 kg battery cap assembly at a warehouse charging station - roughly half the 32 kg vertical-lift margin, keeping the actuator comfortably inside its working zone.
Pick-lane stop actuator
Pops a stop blade up in a 500 mm order-picking lane; the 30 mm adjust window lets the stop height be set flush to the roller bed during commissioning.
Case-eject kicker
Kicks shrink-wrapped cases off a 500 mm wide outfeed; 628 N of push at 0.5 MPa clears jammed cartons that stall lighter 32 mm cylinders.
Is the Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ40X500-30S the Right Cylinder?
Against the smaller MAJ32X500, which manages 402 N push at 0.5 MPa, this 40 mm unit adds roughly half again the force; with no larger MA bore available, heavier jobs mean moving to the MAC range. A 16 mm rod carrying 500 mm of stroke wants external guidance against any side load - lifting an off-center part is where bending begins. Remember the -30 stop screw sets the extend endpoint only and will not lock the rod if air pressure drops, so pair it with a clamp where dwell is critical. Choose FA flange or LB foot plates, with I or Y knuckles on the rod if the push must articulate.
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 MAJ40X500-30S FAQ
Expect 628 N push and 528 N pull at 0.5 MPa, climbing to 880 N push at 0.7 MPa; the theoretical ceiling is 128 kgf at 1.0 MPa. Supply air between 0.15-1.0 MPa (22-145 psi), proof pressure 1.5 MPa (215 psi), air filtered to 40 um, rod speeds 30-800 mm/s.
Not on this model. The MAJ carries fixed anti-impact bumper pads that soften end-of-travel shock but cannot be tuned; if the job needs adjustable pneumatic cushioning, AirTAC's MACJ series is the matching family.
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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