Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ40X200-30S
The AirTAC Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ40X200-30S is a genuine double acting, adjustable stroke standard round-body mini air cylinder with a Ø40mm bore and 200mm stroke, 1/8" air ports and a stainless-steel barrel with a hard-chrome-plated rod for reliable, mildly corrosion-resistant service.
- BoreØ40 mm
- Stroke200 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 MAJ40X200-30S
A 30 mm stop-screw window makes the MAJ40X200-30S the trim-it-on-site choice when the machine drawing says anywhere from 170 to 200 mm of extend travel. Double-acting, it produces 628.3 N of push and 527.8 N of pull at 0.5 MPa, rising to 879.6 N and 738.9 N at 0.7 MPa, from a supply of 0.15-1.0 MPa (22-145 psi) at 30-800 mm/s. For continuous duty, count on about 377 N of push, some 60 percent of the 628 N rating, which translates into roughly 32 kg of vertical lifting capacity with a 2:1 safety margin.
The riveted round body pairs a stainless barrel with a hard-chrome plated 16 mm rod, so warm, damp air near ovens, washers and outdoor conveyors does not attack it the way it attacks painted minis. Anti-impact bumper pads are fixed at both stroke ends, and the magnet comes standard, so CMSG, DMSG or EMSG switches are a clip-on rather than a special order.
Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ40X200-30S Technical Specifications
| Model | Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ40X200-30S |
|---|---|
| Series | MAJ mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 200 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 MAJ40X200-30S
| MAJ | Standard round-body mini cylinder (adjustable-stroke). |
|---|---|
| 40 | Bore size in mm. |
| ×200 | 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 MAJ40X200-30S Is Used
Roller conveyor stopper
Stops totes on a roller conveyor feeding a curing oven; 628 N at 0.5 MPa arrests the flow and the 30 mm trim absorbs line-to-line spacing differences.
Oven rack pusher
Feeds racks of painted parts into a powder-curing oven; the stainless barrel and chrome-plated rod stand up to the warm, humid air at the oven mouth.
Diverter arm on a sorting line
Swings parcels between two sort chutes; a DMSG switch on the standard magnet verifies arm position at the end of every cycle.
Is the Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ40X200-30S the Right Cylinder?
For light gate and divert duty, the MAJ20 pushes 157 N at 0.5 MPa at a fraction of the air cost; 40 mm is the largest MA bore, so anything beyond 628 N at 0.5 MPa calls for a bigger-bore series. Mount on the FA flange or LB foot and fit I or Y rod knuckles where the arm should pivot.
Air loss still lets the piston float, since the stop screw is a mechanical end stop for the extend stroke and not a load-holding brake. On a 200 mm stroke, keep bending loads off the 16 mm rod by guiding the moved part in its own track.
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 MAJ40X200-30S FAQ
Extend force at 0.5 MPa is 628.3 N and retract is 527.8 N; at 0.7 MPa expect 879.6 N and 738.9 N. Peak theoretical force reaches 128.1 kgf at 1.0 MPa. Air supply is 0.15-1.0 MPa (22-145 psi), proof tested to 1.5 MPa (215 psi), speed 30-800 mm/s, fluid filtered to 40 um.
An external stop screw shortens the extend stroke anywhere within the ordered 30 mm window; it cannot lengthen travel beyond the ordered 200 mm. It acts as an end stop, not a mid-stroke lock, so on air loss the rod can still move. Mount with the FA flange or LB foot, and use I or Y rod knuckles where the tooling should pivot.
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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