Vacuum Ejectors - Horizontal Unit System

Vacuum Ejectors - Horizontal Unit System

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Vacuum generator with built-in electromagnetic value enables compact wiring. Controls over the pressure of vacuum release air (air used for release vacuum condition) to prevent a workpiece from being blown off.

Part Number

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VJHB
■Material List
Name[M] Material
Body ResinPBT (Polybutylene Terephthalate) Glass Fiber Filled
Seal RubberNitrile Rubber
Main ValveAluminum Alloy
Joint Portion MetalBrass + Electroless Nickel Plating
Vacuum Filter CoverPCT (Polycyclohexylendimethylenterephthalat)
Filter Cover HolderAluminum Alloy
Vacuum Generation NozzleBrass + Electroless Nickel Plating
Vacuum Generation DiffuserBrass + Electroless Nickel Plating
Release Air Flow Rate Control NeedleBrass + Electroless Nickel Plating

Specification Table

Part NumberNozzle Dia. Nominal
VJHB47
Part NumberNozzle Dia.
Nominal
Nozzle Dia.
(mm)
L1L2C1C2Ultimate Vacuum
(-kPa)
Suction Flow
(ℓ/min (ANR))
Flow Consumption
(ℓ/min (ANR))
Mass
(g)
TypeD
VJHB450.514.614.310.910.990.4711.5164.5
70.793.11323
650.517.117.211.711.790.4711.5
70.793.11323
■ Specifications
Applicable FluidAir
Operating Temperature Range5 to 50°C
Operating Pressure Range0.3 to 0.7 MPa
Rated Supply Pressure0.5 MPa
Release Air Flow Rate0 to 50 ℓ/min (ANR)
(When supply pressure is 0.5 MPa)
Structure of Release Air Relief ValveElastic Seal, Poppet Valve
Relief Pressure Selecting Range0.005 to 0.05 MPa

Part Number:  

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Part Number
VJHB4-5
VJHB6-5
Part Number
Standard Unit Price
Minimum order quantityVolume Discount
Standard
Shipping Days
?
Ultimate Vacuum
(kPa)
Flow Consumption
(l/min)
[D] Vacuum Port One-Touch Fitting Size [D] Air Supply Port One-Touch Fitting Size Suction Flow
(l/min)
Nozzle Diameter Overall Length
(mm)

186.76 €

1 Available 5 Days -90.411.54470.5mm95.9

186.76 €

1 Available 5 Days -90.411.56670.5mm101.3

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  1. 1

Specifications / Overview

■Plumbing Example
■Properties
● Supply Pressure - Ultimate Vacuum, Suction Flow, Flow Consumption

1. The characteristic supply pressure above is for vacuum generation.
2. Valve can cause abnormal sounds at the supply pressure of 0.4 to 0.45 MPa, i.e. the supply pressure value just prior to the peak value of Ultimate Vacuum.
This abnormal sound indicates unstable properties, and the noise will be large.
It may affect the sensor and other objects and cause troubles. Please reset supply pressure.
[Example 1]The original pressure is 0.5 MPa. However, when the vacuum generator is operated, pressure supply declines down to 0.43 MPa due to pressure drop and abnormal noise occurs.
→Reset the supply pressure to 0.5 MPa when vacuum generator is operating.
3. When selecting plumbing and equipment, use the triple value of the Nozzle Dia. Sectional Area as guide of Effective Sectional Area.
If adequate supply air flow rate is not retained, sufficient vacuum properties cannot be achieved.
(Abnormal sound may be generated even within the Set Pressure range. Insufficient Suction Flow, Insufficient Ultimate Vacuum, etc.)
[Example 2]Though the pressure is 0.5 MPa when vacuum generator is operating, abnormal sound occurs.
→Insufficient supply air flow rate (Air flow is squeezed by pipe resistance in the vacuum generator, not obtaining supply air flow rate that meets the characteristics.)
→Select plumbing and equipment to ensure the necessary effective sectional area.
[Example 3]For nozzle diameter 0.5 mm, cross-sectional area 0.25 × 0.25 × π × 3 = 0.59 mm2
→Select plumbing and equipment to retain the effective sectional area to 0.6 mm2 or more.
■Electromagnetic Valve Specifications    ■Electrical Circuit (Electromagnetic Valve)
ItemElectromagnetic Valve for Vacuum GenerationElectromagnetic Valve for Vacuum Release
Pilot Valve





 
Operation MethodDirect Operation
Valve StructureElastic Seal, Poppet Valve
Rated Voltage24 V DC
Allowable Voltage Range24 V DC±10%
Surge Protection CircuitDiode
Power Consumption1.2W (With LED)
Manual OperationPush Type - Non-Locking
Operation IndicatorDuring Coil Excitation Operation: Red LED on
Connection MethodRed: 24 V DC Black: COM
Switching Valve


 
Operation MethodAir Pressure Operation with Pilot Valve
Valve StructureElastic Seal, Poppet Valve
Pressure Resistance1.05 MPa
Valve TypeNC (Normally Closed)
LubricationNot Required
Effective Sectional AreaAir Supply Port Size:
ø4:3.5 mm2 ø6:5 mm2
               1 mm2               
 

Basic information

Type Pipes with Built-in Electromagnetic Valve RoHS Information RoHS Requirements Not Fulfilled Additional Function Filter / Electromagnetic Valve for Vacuum Generation / Electromagnetic Valve for Vacuum Destruction
Vacuum Port Connecting Port Shape Single-Action Coupling Air Supply Port Connecting Port Shape Single-Action Coupling Valve Type Normally Closed
Application Single Item Operating Pressure Range(MPa) 0.3:0.7 Operating Temperature Range(°C) 5:50
Main Body Material Glass Fiber Filled PBT Polybutylene Terephthalate (Polybutylene Terephthalate)

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