SHIMADZU Excellence in science

Shimadzu Korea Vacuum Equipment Co., Ltd.

PRODUCT INDUSTRIAL MACHINERY

BEST for Semi & FPD Customers

Balancing Machine

SGB/STB Series (2-Plane)
Model SGB/STB-003NEII  SGB/STB-03NEII  SGB/STB-1NEII 
Workpiece Weight (kg) 0.001 to 0.03 0.01 to 0.3 0.01 to 1
Max. Workpiece Diameter (mm) 30 60 200
Max. Diameter for Belt Drive (mm) 30 40 150
Span Across Bearings (mm) 15 to 185 15 to 185 50 to 370
Workpiece Shaft Diameter (mm) (1) 1.5 to 6 1.5 to 8 5 to 15
Drive motor (w) 18 (stepping motor) 18 (stepping motor) 90 (variable speed)
Bearing type (1) V bearing, one set Roller bearing, one set
Min. Achievable Eccentric Distance(µm) (2) 0.1 (mass eccentricity for a workpiece of max. weight)
Min. Achievable Unbalance on One-Plane (g・mm)  0.0008 0.003 0.01
Testing Speed (rpm) (3) 700 to 3600 (depending on outer diameter of workpiece)
Belt drive system (4) Downward-tangential and winding drive
Size (W×D×H mm) 240×330×220 240×330×220 500×500×500
Weight (kg) 50 50 80
Power supply Single-phase 100V 10A 1KVA

Model SGB/STB-3NEII  SGB/STB-10NEII  SGB/STB-30NEII 
Workpiece Weight (kg) 0.03 to 3 0.1 to 10 0.3 to 30
Max. Workpiece Diameter (mm) 200 300 300
Max. Diameter for Belt Drive (mm) 150 150 150
Span Across Bearings (mm) 50 to 370 60 to 520 60 to 520
Workpiece Shaft Diameter (mm) (1) 5 to 25 5 to 25 10 to 40
Drive motor (w) 90 (variable speed) 200 (variable speed) 200 (variable speed)
Bearing type (1) Roller bearing, one set
Min. Achievable Eccentric Distance(µm) (2) 0.1 (mass eccentricity for a workpiece of max. weight)
Min. Achievable Unbalance on One-Plane (g・mm)  0.03 0.1 0.3
Testing Speed (rpm) (3) 700 to 3600 (depending on outer diameter of workpiece)
Belt drive system (4) Downward-tangential and winding drive
Size (W×D×H mm) 500×500×500 650×590×520 650×590×520
Weight (kg) 80 200
Power supply Single-phase 100V 10A 1KVA Single-phase 200V 10A 2KVA

Typical Applications

Small motors, small rotors, fans, hard disk drives, high speed rotating polygon mirrors, and rotating parts in general
(1) Standard machines include one standard bearing. Cost estimates for special bearings are available on request.
(2) The minimal achievable residual unbalance will vary with the workpiece weight and the test speed. Refer to the attached sensitivity diagram for details.
(3) Depending on the form and weight of the workpiece, the test speed may be increased beyond the specified range.
(4) Upward-tangential drive systems are available on request.