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Coval LEMAX90X14S Compact Vacuum Generator
Coval LEMAX90X14S is a high-performance compact vacuum generator equipped with built-in ASC Air Saving Control system, achieving energy consumption reduction of 75-99%. It is ideally applied to gripping airtight workpieces on automated production lines. Featuring integrated design with solenoid valve, vacuum switch and silencer, fast response time below 1 second and IP65 protection grade, it adapts to diverse industrial environments.
- Model Code Interpretation
| Code Segment | Definition | Detailed Description |
| LEMAX | Product Series | Compact integrated vacuum generator with ASC system, up to 90% energy saving |
| 90 | Vacuum Grade | Max relative vacuum: 85-90%, corresponding absolute pressure: 85-90kPa |
| X | Structural Code | Standard single vacuum generator, different from dual-unit (suffix B) and IO-Link type (suffix IO) |
| 14 | Nozzle Size | Inner nozzle diameter 1.4mm, determines maximum suction flow and air consumption |
| S | Control Mode | 24V DC normally closed solenoid valves for vacuum and blow-off, fitted with electronic vacuum switch |
- Core Specification Parameters
| Category | Technical Index | Remarks |
| Basic Performance | ||
| Maximum Vacuum Degree | 85-90% (Relative Vacuum) | Automatically maintains preset vacuum with ASC activated |
| Suction Flow | 70Nl/min | Under standard working condition |
| Air Consumption | 90Nl/min | 75-99% consumption cut with ASC enabled |
| Nozzle Diameter | 1.4mm | Optional: 1.0mm, 1.2mm, 1.4mm |
| Electrical Characteristics | ||
| Operating Voltage | 24V DC ±10% | Ripple ≤10% |
| Control Mode | Dual NC Solenoid Valves (Vacuum/Blow-off) | Vacuum status monitored by electronic switch |
| Connection Port | 2 pcs M8 4-pin Connectors | For power supply, control signal and status feedback |
| Output Current | Max 125mA per channel | Overcurrent triggers Er1 fault |
| Pneumatic Parameters | ||
| Working Pressure Range | 3.0-6.0 bar | Optimal pressure: 3.5 bar |
| Response Time | Vacuum build-up: 0.99s, Blow-off release: 1.16s | Tested under 1L volume |
| Silencer | Built-in anti-clogging type | Noise reduced to 72-75dB(A) |
| Mechanical Dimension | ||
| Dimension (L×W×H) | 60×40×30mm | Compact structure saves installation space |
| Weight | Approx. 150g | Suitable for light manipulator and high-speed operation |
| Material | Body: Anodized Aluminum Alloy; Seal: NBR Rubber | Good oil resistance for industrial use |
| Ambient Condition | ||
| Operating Temperature | 0-50°C | Avoid condensate freezing |
| Storage Temperature | -20-60°C | Relative humidity ≤90%, no condensation |
| Protection Grade | IP65 | Dustproof and waterproof, applicable to harsh sites |
| Certification | ||
| CE Certification | Compliant with EN 61010-1:2010 | Electrical safety certification |
| RoHS Certification | Compliant with EU Directive 2011/65/EU | Restriction of hazardous substances |
| Order Number | 207097 | Original factory part number |
- Full Series Model List
Standard LEMAX Series
| Model | Nozzle Diameter | Control Mode | Connector | Max Vacuum | Suction Flow | Order No. |
| LEMAX90X10S | 1.0mm | NC/NC | 2×M8 4-pin | 90% | 45Nl/min | 207095 |
| LEMAX90X12S | 1.2mm | NC/NC | 2×M8 4-pin | 90% | 60Nl/min | 207096 |
| LEMAX90X14S | 1.4mm | NC/NC | 2×M8 4-pin | 90% | 70Nl/min | 207097 |
| LEMAX90X10V | 1.0mm | NO/NC | 2×M8 4-pin | 90% | 45Nl/min | 207098 |
| LEMAX90X12V | 1.2mm | NO/NC | 2×M8 4-pin | 90% | 60Nl/min | 207099 |
| LEMAX90X14V | 1.4mm | NO/NC | 2×M8 4-pin | 90% | 70Nl/min | 207100 |
Dual-unit LEMAXB Series
| Model | Configuration | Nozzle Diameter | Control Mode | Connector | Order No. |
| LEMAX90X14SB | Dual Vacuum Generator | 1.4mm | NC/NC | 2×M8 4-pin | 207101 |
| LEMAX90X14SB2 | Dual Vacuum Generator | 1.4mm | NC/NC | 2×M12 4-pin | 207102 |
IO-Link LEMAXIO Series
| Model | Communication Protocol | Nozzle Diameter | Control Mode | Connector | Order No. |
| LEMAXIO90X14SC14 | IO-Link | 1.4mm | NC/NC | 1×M8 4-pin | 4712 |
| LEMAXIO90X14SC15 | IO-Link | 1.4mm | NC/NC | 1×M12 5-pin | 4713 |
- Cross-brand Replacement Comparison
| Coval Model | FESTO Equivalent | SCHMALZ Equivalent | Piab Equivalent | Replacement Description |
| LEMAX90X14S | VADMI-200 | SCPi 15 NO | P3010.NA | Identical vacuum level 85-90%, similar flow 70-80Nl/min, energy-saving equipped |
| – | VADMI-300 | SCPi 20 NO | P3020.NA | Higher flow 100-120Nl/min, for heavy workpieces |
| – | VADMI-100 | SCPi 10 NO | P3005.NA | Lower flow 30-40Nl/min, for light workpieces |
Replacement Selection Tips
- Vacuum matching: Ensure replacement vacuum degree ≥85% for airtight workpiece gripping
- Flow matching: Suction flow deviation controlled within ±10% to avoid unstable gripping
- Consistent control logic: Keep NC/NC or NO/NC mode to avoid PLC program modification
- Interface compatibility: Verify connector type and pin definition for safe electrical connection
- Common Faults & Troubleshooting
| Fault Code | Fault Description | Possible Cause | Solution |
| Er1 | S1 Output Overcurrent | Load current over 125mA, short circuit or wrong wiring | 1. Power off and inspect load |
| 2. Ensure current below 125mA | |||
| 3. Check wiring integrity | |||
| Er2 | S2 Output Overcurrent | Load current over 125mA, short circuit or wrong wiring | Same as Er1, inspect S2 circuit |
| Er3 | Vacuum Sensor Malfunction | Sensor damage or poor connection | 1. Check wiring |
| 2. Clean sensor port | |||
| 3. Replace sensor module | |||
| No Vacuum Failure | Failed vacuum generation | Insufficient air pressure, clogged nozzle, damaged seal | 1. Adjust pressure to 3.5-6.0bar |
| 2. Back purge nozzle with compressed air | |||
| 3. Replace defective seals | |||
| Rapid Vacuum Drop | Unstable vacuum retention | Workpiece air leakage, ASC fault, valve leakage | 1. Check airtightness and add suction cups |
| 2. Restart ASC and reset threshold | |||
| 3. Inspect solenoid valve | |||
| Abnormal Noise | Noise over 75dB | Blocked silencer, excessive pressure, loose assembly | 1. Clean or replace silencer |
| 2. Set pressure to 3.5bar | |||
| 3. Fasten loose parts |
- Air Freight Compliance & Certification
Air Freight Assessment
| Compliance Item | Result | Explanation |
| Hazardous Goods Classification | Non-hazardous | No built-in lithium battery or super capacitor, purely pneumatic electronic device |
| Magnetic Assessment | Non-magnetic cargo | No strong magnetic components, no impact on aircraft navigation |
| Packaging Requirement | Standard industrial package | Prevent mechanical damage and dust intrusion |
| Shipping Document | Ordinary cargo declaration | No dangerous goods declaration required |
Mandatory Certificates
- CE Certificate: Conforms to EN 61010-1 electrical safety standard
- RoHS Compliance Statement: Free of lead, mercury and other hazardous substances
- Material Safety Data Sheet (MSDS)
- Original Factory Qualification Certificate
- Application Cases & Industry Adaptation
Typical Application Scenarios
- Packaging Industry
Automatic handling and cartoning of food, pharmaceutical and daily chemical products. ASC system greatly cuts compressed air cost.
Case: Cosmetic factory adopts LEMAX90X14S with robot to grip plastic bottles, energy consumption reduced by 85%, annual power saving about 120,000 RMB.
- Electronics Industry
Precise gripping of PCB boards, semiconductors and display panels without surface damage.
Case: Mobile phone assembly line achieves positioning accuracy ±0.1mm, product yield raised to 99.8%.
- Automotive Components
Handling interior trims, plastic and stamping parts, suitable for high-speed production lines.
Case: Car seat production improves line cycle efficiency by 20% with response time less than 1s.
- Medical Devices
Automatic packaging of disposable medical supplies, meets GMP clean room standards.
Case: Applied in 100,000-class clean workshop, oil-free and contamination-free.
Industry Adaptation Guide
| Industry | Advantages | Notes |
| Food Packaging | Oil-free operation, FDA compliant | Regular cleaning, food-grade seal recommended |
| Electronic Manufacturing | Compact size for narrow installation space | Anti-static treatment to avoid component damage |
| Automotive Industry | High stability for harsh working conditions | Anti-vibration mounting, periodic seal inspection |
| Medical Equipment | Low noise and clean performance | Medical grade material adoption, regular disinfection |
- Selection Rules
Quick Selection Guide
- Vacuum Grade: 90 = 85-90% vacuum for airtight workpieces; 60 = 60-65% vacuum for light loads
- Nozzle Size: 1.0mm small flow, 1.2mm medium flow, 1.4mm large flow
- Control Mode: S=NC/NC, V=NO/NC
- Special Function: B=dual unit, IO=IO-Link communication, C14=M8 port, C15=M12 port
- Application Scope: LEMAX for airtight workpieces; LEM+ for porous & rough surfaces
Purchasing Suggestion
- Confirm required nozzle diameter (1.0/1.2/1.4mm) and control mode (NC/NC or NO/NC)
- Select proper suction flow based on workpiece weight and dimension
- Reserve IO-Link function for future system expansion
- Contact authorized Coval distributors for bulk order discount
- Equip with vacuum suction cups and mounting brackets for stable operation
