Product Overview
The SMC AS4000 is a precision pneumatic speed controller (flow control valve) engineered by SMC Corporation, a global leader in pneumatic and industrial automation technology. Operating on a unidirectional flow-control principle, the AS4000 meters exhaust or supply air through an adjustable needle valve to regulate the actuation speed of pneumatic cylinders and rotary actuators with exceptional repeatability. Its in-line, body-ported design integrates a built-in one-touch fitting and a push-lock needle adjustment, allowing precise, tool-free speed tuning directly at the point of use. As a core component within SMC’s AS series process and pneumatic valve family, the AS4000 delivers stable, drift-resistant flow regulation essential for synchronized motion control in automated industrial systems.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Pneumatic Speed Controller (Flow Control Valve) |
| Model Designation | AS4000 |
| Series / Size | AS Series, 4000 body size (1/2 port class) |
| Operating Pressure | Standard Industrial Grade (0.1 to 1.0 MPa / approx. 14 to 145 psi) |
| Proof Pressure | 1.5 MPa (approx. 217 psi) |
| Flow Adjustment | Needle valve with push-lock dial, meter-out / meter-in configuration |
| Mounting & Connection | In-line body ported with built-in One-touch tube fitting (ISO 4414 / SMC interface) |
| Operating Temperature Range | -5°C to +60°C (no freezing) |
Engineering Features & Advantages
- Precision Flow Metering: The fine-thread needle valve delivers smooth, linear adjustment of air flow, enabling accurate and repeatable cylinder speed control across the full operating range.
- Push-Lock Adjustment Dial: A locking mechanism prevents setting drift caused by vibration and machine cycling, maintaining stable actuator speeds over extended production runs.
- Integrated One-Touch Fitting: The built-in tube connection reduces installation time and eliminates the need for separate fittings, minimizing potential leak points in the pneumatic circuit.
- Industrial Reliability: Constructed with a durable body and precision internal components for continuous operation under severe industrial conditions.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original SMC AS4000 specifications for drop-in service and maintenance.
Typical Industrial Applications
The SMC AS4000 pneumatic speed controller is widely deployed in automated manufacturing and process environments, including packaging and filling machinery, pick-and-place and assembly automation, plastic injection molding machine handling systems, CNC machine tool clamping and tool-change circuits, and general pneumatic cylinder speed regulation in metallurgical, automotive, and food-processing production lines.
PRODUCT IMAGES
SMC AS4000 Pneumatic Speed Controller
⚡ Emergency Plant Maintenance & Ready-to-Ship Notice:
- Authentic & Fully Tested: 100% bench tested for hydraulic response, pressure rating, and null-bias stability before dispatch.
- Fast Dispatch: In-stock units ready for same-day dispatch via DHL / FedEx Express directly to your plant.
- Pre-Shipment Verification: High-definition photos, video testing runs, and serial number verification provided prior to shipment.
- Peace of Mind: Covered by our 12-Month Replacement Warranty.
Shop the genuine SMC AS4000 Speed Controller. This Japan-made pneumatic flow control valve features a precise needle design, delivering reliable, leak-free air flow regulation for industrial automation systems.