Brand: SOLH by Richge Technology | Direct Replacement for CONVUM Vacuum Generator
CONVUM is a well-established Japanese manufacturer of vacuum systems, famous for integrated, modular and highly reliable vacuum ejectors. SOLH replacement version inherits its classic structure and naming system. It is the mainstream choice for 3C electronics and robotic automation.
Example: CV-10HS-MD
• CV: Series code for Convum-style vacuum ejector
• 10/15/20/25/30: Nozzle size. Larger number = higher flow & suction power
• HS / LS: Performance grade
￮ HS: High vacuum type, high vacuum level for heavy & sealed workpieces
￮ LS: High flow type, large intake flow for porous / leaky applications
• M: Standard silencer (noise 80-85dB)
• D: High-performance silencer (low noise 58-65dB)
• CK: Equipped with vacuum pressure switch (signal feedback)
• DK: Pressure switch + 1m cable
• K25L: Built-in DC24V solenoid valve for automatic vacuum ON / release
3.1 Basic Version (without silencer)
|
Model |
Performance Type |
Application |
|
CV-10HS/15HS/20HS/25HS/30HS |
High vacuum, no silencer |
Cost-sensitive applications, no noise requirement |
|
CV-10LS/15LS/20LS/25LS/30LS |
High flow, no silencer |
Porous / leaky workpieces, no noise requirement |
3.2 Silencer Version (Standard / Low Noise)
|
Model |
Silencer Type |
Noise Level |
|
CV-10HS-M/15HS-M/20HS-M/25HS-M/30HS-M |
Standard silencer |
80-85dB |
|
CV-10HS-MD/15HS-MD |
High-performance silencer |
58-65dB |
|
CV-10LS-M/15LS-M/20LS-M/25LS-M/30LS-M |
Standard silencer |
80-85dB |
|
CV-10LS-MD/15LS-MD |
High-performance silencer |
58-65dB |
3.3 Pressure Switch Version (With Signal Feedback)
|
Model |
Configuration Description |
|
CV-10HSCK-MD / 15HSCK-MD |
High silencer + vacuum pressure switch |
|
CV-20HSCK / 25HSCK / 30HSCK |
Standard silencer + vacuum pressure switch |
|
CV-10HSDK /15HSDK |
High silencer + pressure switch + 1m cable |
3.4 Solenoid Valve Version (Auto Vacuum & Break Vacuum)
|
Model |
Configuration Description |
|
CV-10HS-K25L /15HS-K25L |
Built-in DC24V solenoid valve, no pressure switch |
|
CV-10HSCK-K25L /15HSCK-K25L |
Solenoid valve + pressure switch, integrated control |
|
Item |
HS High Vacuum Type |
LS High Flow Type |
|
Vacuum Degree |
High (-90~-93kPa) |
Medium (-85~-90kPa) |
|
Suction Flow |
Medium |
High (~+20% higher flow vs HS same size) |
|
Workpiece Suitability |
Heavy parts, sealed components, metal workpieces |
Porous workpieces, sheet, glass, high leakage loads |
|
Typical Model |
CV-15HS |
CV-15LS |
1. Select nozzle size first
￮ Small suction cup / light workpiece: 10 /15 series
￮ Medium suction cup / regular workpiece: 20 series
￮ Large suction cup / sheet / glass:25 /30 series
2. Select performance type
￮ Strong suction & prevent dropping: choose HS
￮ Higher flow & faster pick: choose LS
3. Select optional accessories
￮ Noise sensitive workshop: choose D high-performance silencer
￮ Need vacuum feedback signal: choose CK pressure switch
￮ Auto vacuum / release: choose K25L built-in solenoid valve
• 1:1 interchangeable with CONVUM: mounting dimension, port interface and performance fully compatible, direct drop-in replacement.
• Full configuration portfolio: basic unit, valve integrated, pressure switch & silencer options, one-stop solution.
• Excellent cost performance: price is 1/3~1/2 of imported original, great for machine cost reduction in mass production.
• Low noise option available: high silencer version down to 58dB for quiet workshop environment.
• Maintenance-free design: no moving parts, long service life, suitable for 24h continuous operation.
Address
No.1083 Zhongshan East Road, Yinzhou District, Ningbo City, Zhejiang Province, China
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