Mandrel
(hydraulic type / slide type)
For chucking ring-shaped products during measurement & machining!
- Easy operation by anyone with just one wrench!
- Master gripping runout accuracy is less than 5μm
Easy for anyone 95% reduction of man-hours
Inexpensive mechanism ensures high runout accuracy 5μm or less
The same unit suitable for a wide variety of products
Amazing facts!
── Introducing ideas and technologies ──
Easy operation with a single wrench reduces time required for centering adjustment and realizes high-precision clamping no matter who operates it.
Supports a wide variety of products according to workpiece shape and equipment, taking advantage of Fuji Seiko’s strengths.
Can be used for a wide range of diameters by replacing the collet!
“Easy”, “High accuracy” and “Flexible” at the same time.
Excellent gripping runout accuracy
Good!
Reduced centering adjustment time
Good!
This is the point!
Easy and highly accurate: same accuracy can be achieved no matter who operates it!
Excellent!
Hydraulic expansion type
- Closing control type for machining applications: resistant to machining vibrations
- Torque control type (rotation speed control) for measurement applications: stable expansion amount
Slide key expansion type
Features: wide range of gripping diameters
- Wrench operation type:
easy fixing with a hex wrench - Hand tightening operation type:
easy clamping without tools
Tapered key sliding mechanism (for both types) allows for a wide range of clamping diameters
Wrench operation type
Hand tightening operation type
Development / product concept
“Current status and challenges”
- In the past, it was difficult to accurately measure workpieces in the machining and measurement of gears, and centering adjustment of workpieces was time-consuming and required the skill of a skilled operator.
There is a need for a stable, high-precision clamping jig that is easy to operate and does not vary from person to person.
“Development points”
- The “Mandrel” can be operated with a single wrench, greatly reducing the number of man-hours required for centering.
- Furthermore, the small-diameter type, which is in high demand from customers, is also available.
- Easy operation, high accuracy and flexibility at the same time.
Case Study
- Wide range of services from machining to assembly and inspection
Double center type
(hydraulic)
Small diameter type
(hydraulic)
Workbench type
(hydraulic)
Slide key type
Applications:
- Turning (lathe)
- Gear cutting
- Skiving
- Grinding
- Assembly
- Inspection
We can propose a version that matches your application.
Product specifications
Hydraulic expansion type
Features
- Easy operation
- Replacement collets for wide variety of products
- Long life design
Purpose
Turning / grinding, measurement
Expansion amount
øD × 0.003 mm
(expands ø0.06 mm for ø20 mm)
Runout accuracy
Within 5 μm
Repeatability
Within 1 μm
Gripping diameter
ø8 ~ ø200 mm
Slide key expansion type
Features
- Easy operation
- Large expansion amount
- Uniform grip for everyone
Purpose
Measurement
Expansion amount
ø1.0 mm
(special support available)
Runout accuracy
Within 5 μm
Repeatability
Within 1 μm
Gripping diameter
ø18 ~ ø200 mm