Airtac MBLCJ Adjustable Mini Cylinder MBLCJ40X200-75S
The AirTAC Airtac MBLCJ Adjustable Mini Cylinder MBLCJ40X200-75S is a genuine double-acting aluminum-barrel mini cylinder with a Ø40mm bore, a 200mm nominal stroke and a rear adjustable-stroke stopper — trim up to 75mm for a usable window of 125–200mm. Adjustable air cushion (both ends).
- BoreØ40 mm
- Stroke200 mm
- Adjustable125–200 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM12×1.25
- CushionAdjustable air cushion (both ends)
- 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 MBLCJ Adjustable Mini Cylinder MBLCJ40X200-75S
The AirTAC MBLCJ40X200-75S is a compact double-acting aluminum mini cylinder featuring a rear stroke adjuster and a tunable air cushion at both ends. It delivers 628 N of push force and 528 N of pull force at 0.5 MPa. The 75 mm rear adjuster creates a usable stroke window of 125 to 200 mm, allowing you to fine-tune the end position without moving the physical mount. A built-in magnet (-S) enables position detection via CMSG reed or DMSG/EMSG electronic switches.
Unlike the standard MBLJ which relies on a fixed rubber bumper, this model uses screw-tunable air deceleration to protect the end covers during heavy, fast moves. The 16 mm carbon-steel rod features 20 µm hard-chrome plating to resist wear, while the heterogeneous two-way grease-retaining piston seal maintains lubrication over high cycle counts. Remember that the rear adjuster acts only as a travel stop, not a mechanical lock; the cylinder cannot hold a load in place without continuous air pressure.
Airtac MBLCJ Adjustable Mini Cylinder MBLCJ40X200-75S Technical Specifications
| Model | Airtac MBLCJ Adjustable Mini Cylinder MBLCJ40X200-75S |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder (adjustable stroke) |
| Bore size | Ø40 mm |
| Nominal stroke | 200 mm |
| Adjustable window | 125–200 mm (trim 75 mm) |
| Acting type | Double acting |
| Port size | G1/4 |
| 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 | Adjustable air cushion (both ends) |
| Max standard stroke | Up to 500 mm |
The rear stopper sets the end position — it is a travel stop, not a lock. Overall length = A + 2 × stroke + adjustable stroke. MBLJ/MBLCJ mounting is Basic / FA / LB only (no SDB, no back-cover code). Thread options: PT / G / NPT.
Theoretical Output Force (Ø40mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa | 880 N | — |
| Max (@1.0 MPa) | 128 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a margin.
Model Code: Airtac MBLCJ Adjustable Mini Cylinder MBLCJ40X200-75S
| MBLCJ | MBLCJ aluminum-barrel adjustable-stroke mini cylinder with adjustable cushion. |
|---|---|
| 40 | Bore size in mm. |
| ×200 | Nominal stroke length in mm. |
| -75 | Adjustable-stroke amount (mm you can trim at the rear). |
| S | Optional built-in magnet for a CMSG/DMSG/EMSG sensor switch. |
Related: MBLJ (adjustable stroke, fixed bumper), MBL (fixed stroke), MBLD (double rod).
Where the Airtac MBLCJ Adjustable Mini Cylinder MBLCJ40X200-75S Is Used
Injection Mold Ejection
Provides 880 N of push force at 0.7 MPa to eject dense plastic parts, using the 75 mm rear adjuster to dial in the exact ejection height without repositioning the mold.
Pallet Diverting
Handles heavy pallet routing on a 40 mm bore by using the tunable air cushion to softly decelerate the 628 N thrust at the end of the 200 mm stroke, preventing load spillage.
PCB Press Testing
Uses the built-in magnet with DMSG solid-state switches to confirm press position during circuit board testing, ensuring the 528 N pull force retracts fully before the next cycle.
Is the Airtac MBLCJ Adjustable Mini Cylinder MBLCJ40X200-75S the Right Cylinder?
Select this 40 mm bore when your application requires more thrust than the 32 mm variant (402 N push at 0.5 MPa) but less than the 50 mm size (981 N push at 0.5 MPa). Choose the MBLCJ over the MBLJ if your moving mass requires tunable end-of-stroke deceleration rather than a fixed bumper, or over the MBLC if you need to trim the 200 mm travel window down to 125 mm. To match this exact SKU for replacement, verify the 40 mm bore, 200 mm stroke, 75 mm adjust code, G1/4 port, PT thread, basic mounting, and the -S magnet.
Because the overall length equals A + 2 x stroke + adjust, the extended 275 mm total travel envelope requires careful spatial planning. The 16 mm rod is robust, but at 200 mm of travel, lateral side-loads will cause uneven seal wear and rod bending; always use an external guide rail to absorb radial forces. Mounting is limited to Basic, FA flange, or LB foot styles, as the MBLCJ series omits the SDB pivot and back-cover options.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Adjustable window fits your end position
- ✓ Adjuster is a travel stop, not a lock
- ✓ Magnet (S) for sensors?
- ✓ Side load — add a guide on long strokes
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Set the rear stopper for the end position (a travel stop, not a lock).
- check Avoid side load; add an external guide on long strokes.
- check Mounting: Basic / FA flange / LB foot (no SDB, no back-cover code).
- check Installation by qualified personnel per AirTAC docs.
Airtac MBLCJ Adjustable Mini Cylinder MBLCJ40X200-75S FAQ
At 0.5 MPa, the 40 mm bore generates 628 N of push force and 528 N of pull force. At 0.7 MPa, the push force increases to 880 N. The maximum theoretical force is 128 kgf at 1.0 MPa, with an operating pressure range of 0.15 to 1.0 MPa.
The 75 mm adjustable stroke is a mechanical rear stopper that trims the usable travel window down from 200 mm to a minimum of 125 mm, setting the exact end position. The adjustable air cushion is a separate screw-tunable valve that controls end-of-stroke deceleration speed. Neither feature locks the load; the rod drifts without live air pressure.
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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