TJR Hirth Coupling Index Table - HI Ø320

Sub-arcsecond angular precision for demanding multi-face machining operations.

TJR CNC Rotary Table Product Details And Specifications

HHI-320x320F

HHI-320x320F Product Specifications

HHI-320x320F Product Specifications
Item	Data
Application	Horizontal
Installation Mode	Add-on
Table diameter(mm)	Ø320x320
Diameter of center through hole(mm)	Ø50x27deep
Table height (Horizontal)(mm)	240
Guide block width(mm)	18h7
Transmission Mechanisms	Worm and Worm Gear
Min. increment(deg.)	1 or 5
Indexing precision(sec.)	±5
Repeatability(sec.)	±1
Clamping system (MPa / kg/cm²)	Hirth coupling Hydraulic (3.6 / 35)
Clamping torque(N.m / kgf · m)	2943 / 300
Servo motor model(FANUC)(Straight shaft without key)	ßiS12
Servo motor model(MITSUBISHI) (Straight shaft without key)	HF/HG-104/154
Speed reduction ratio	1:120
Max. rotation rate of table(min-1)	25
Allowable workpiece load (Horizontal)(kg)	300
Allowable thrust load (with rotary table clamping) F (N / kgf)	15696 / 1600
(Axial)＊1 Allowable thrust load (with rotary table clamping) FxL (N.m / kgf·m)	1717 / 175
(Radial)＊2 Allowable thrust load (with rotary table clamping) FxL (N.m / kgf·m)	2943 / 300
Net weight ( sever motor excluded)(kg)	149
＊1	The structural limit value, while the actual operating speed will vary depending on the motor.

Frequently Asked Questions

What is the HHI-320x320F?

The HHI-320x320F is a Hirth coupling index table made for CNC machining. It helps position the workpiece accurately during machining.

What is the table size of HHI-320x320F?

The table size is 320 x 320 mm.

What type of clamping does it use?

It uses hydraulic clamping with a Hirth coupling system. This helps hold the table firmly during machining.

How accurate is the HHI-320x320F?

It offers indexing accuracy of ±5 arc seconds and repeatability of ±1 arc second.

What is the minimum indexing angle of HHI-320x320F?

The table can index in 1-degree or 5-degree increments, depending on the setup.

What is the maximum speed?

The maximum rotation speed is 25 rpm.

How much weight can it handle?

The HHI-320x320F can handle a horizontal workpiece load of up to 300 kg.

What type of gear system does HHI-320x320F use?

It uses a worm and worm gear system with a 1:120 reduction ratio.

Which servo motors can be used with this table?

The HHI-320x320F is available for FANUC and Mitsubishi servo motor systems.

Where is the HHI-320x320F used?

It is used for CNC machining applications that need accurate positioning, strong clamping, and repeatable indexing.

HI-320R Product Specifications

HI-320R Product Specifications
Item	Data
Application	Vertical or Horizontal
Installation Mode	Add-on
Table diameter(mm)	Ø320
Inner diameter of mandrel sleeve(mm)	Ø80H7
Diameter of center through hole(mm)	Ø80
Center height (Vertical)(mm)	210
Table height (Horizontal)(mm)	250
Table T-slot width(mm)	14H7
Guide block width(mm)	18h7
Transmission Mechanisms	Worm and Worm Gear
Min. increment(deg.)	1 or 5
Indexing precision(sec.)	± 5
Repeatability(sec.)	± 1
Clamping system (MPa / kg/cm²)	Hirth coupling Hydraulic (3.5 / 35)
Clamping torque(N.m / kgf · m)	3924 / 400
Servo motor model(FANUC)(Straight shaft without key)	βis22
Servo motor model(MITSUBISHI) (Straight shaft without key)	HG - 204
Speed reduction ratio	1:120
Max. rotation rate of table(min-1)	25
Allowable inertia load capacity (vertical)(kg-m²)	4.5
Allowable workpiece load (Vertical)(kg)	175
Allowable workpiece load (with support table)(kg)	350
Allowable workpiece load (Horizontal)(kg)	350
Allowable thrust load (with rotary table clamping) F (N / kgf)	19620 / 2000
(Axial)＊1 Allowable thrust load (with rotary table clamping) FxL (N.m / kgf·m)	2453 / 250
(Radial)＊2 Allowable thrust load (with rotary table clamping) FxL (N.m / kgf·m)	3924 / 400
Net weight ( sever motor excluded)(kg)	210
＊1	The structural limit value, while the actual operating speed will vary depending on the motor.

Frequently Asked Questions

What is the HI-320R?

The HI-320R is a CNC Hirth coupling indexing table used for accurate rotary positioning during machining.

What is the table size of the HI-320R?

The HI-320R has a table diameter of 320 mm.

Can the HI-320R be used vertically and horizontally?

Yes. The HI-320R can be installed for both vertical and horizontal machining.

How accurate is the HI-320R?

The HI-320R has an indexing accuracy of ±5 seconds and repeatability of ±1 second.

What type of clamping system does the HI-320R use?

The HI-320R uses a Hirth coupling with hydraulic clamping for strong and stable positioning.

How much weight can the HI-320R hold?

The HI-320R can hold up to 175 kg in vertical use and up to 350 kg with a support table or in horizontal use.

What is the maximum speed of the HI-320R?

The maximum table rotation speed is 25 min⁻¹.

Which servo motors are available for the HI-320R?

The HI-320R is available with FANUC βis22 and Mitsubishi HG-204 servo motor options.

What indexing increments are available on the HI-320R?

The HI-320R is available with minimum indexing increments of 1° or 5°.

Where can the HI-320R be used?

The HI-320R is suitable for CNC machining applications that need accurate rotary positioning and strong workpiece clamping.

HI-320N Product Specifications

HI-320N Product Specifications
Item	Data
Application	Vertical or Horizontal
Installation Mode	Add-on
Table diameter(mm)	Ø320
Inner diameter of mandrel sleeve(mm)	Ø80H7
Diameter of center through hole(mm)	Ø80
Center height (Vertical)(mm)	210
Table height (Horizontal)(mm)	250
Table T-slot width(mm)	14H7
Guide block width(mm)	18h7
Transmission Mechanisms	Worm and Worm Gear
Min. increment(deg.)	1 or 5
Indexing precision(sec.)	± 5
Repeatability(sec.)	± 1
Clamping system (MPa / kg/cm²)	Hirth coupling Hydraulic (3.5 / 35)
Clamping torque(N.m / kgf · m)	3924 / 400
Servo motor model(FANUC)(Straight shaft without key)	βis22
Servo motor model(MITSUBISHI) (Straight shaft without key)	HG - 204
Speed reduction ratio	1:120
Max. rotation rate of table(min-1)	25
Allowable inertia load capacity (vertical)(kg-m²)	4.5
Allowable workpiece load (Vertical)(kg)	175
Allowable workpiece load (with support table)(kg)	350
Allowable workpiece load (Horizontal)(kg)	350
Allowable thrust load (with rotary table clamping) F (N / kgf)	19620 / 2000
(Axial)＊1 Allowable thrust load (with rotary table clamping) FxL (N.m / kgf·m)	2453 / 250
(Radial)＊2 Allowable thrust load (with rotary table clamping) FxL (N.m / kgf·m)	3924 / 400
Net weight ( sever motor excluded)(kg)	210
＊1	The structural limit value, while the actual operating speed will vary depending on the motor.

Frequently Asked Questions

What is the HI-320N?

The HI-320N is a CNC Hirth coupling indexing table used for accurate rotary positioning during machining.

What is the table size of the HI-320N?

The HI-320N has a table diameter of 320 mm.

Can the HI-320N be used vertically and horizontally?

Yes. The HI-320N can be used for both vertical and horizontal machining.

How accurate is the HI-320N?

The HI-320N has an indexing accuracy of ±5 seconds and repeatability of ±1 second.

What type of clamping system does the HI-320N use?

The HI-320N uses a Hirth coupling with hydraulic clamping for strong and stable positioning.

How much weight can the HI-320N hold?

The HI-320N can hold up to 175 kg in vertical use and up to 350 kg in horizontal use or with a support table.

What is the maximum speed of the HI-320N?

The maximum rotation speed of the HI-320N is 25 min⁻¹.

Which servo motors are available for the HI-320N?

The HI-320N is available with FANUC βis22 and Mitsubishi HG-204 servo motor options.

What indexing increments are available on the HI-320N?

The HI-320N is available with minimum indexing increments of 1° or 5°.

Where is the HI-320N used?

The HI-320N is used in CNC machining applications that need accurate rotary positioning, strong clamping, and reliable workpiece support.

Request a Quote

Tell us about your requirements, and we will develop a tailored solution for you

Call with us

Download Digital Product Catalogue

Download the brochure and see what precision looks like.

Download Now

Built on Innovation and engineered for Excellence.

We deliver precision indexing and rotary solutions that meet the highest standards of performance, trusted by manufacturers who demand accuracy, reliability, and results at every stage of production.

Send Enquiry

TJR Hirth Coupling Index Table - HI Ø320

HHI-320x320F

Product Dimension

HHI-320x320F Product Specifications

Frequently Asked Questions

Product Dimension

HI-320R Product Specifications

Frequently Asked Questions

Product Dimension

HI-320N Product Specifications

Frequently Asked Questions

Related Products

HI 255

HI 400

HI 500

HI 630

HI 800

HI 1000

Request a Quote

Download Digital Product Catalogue

Built on Innovation and engineered for Excellence.

4th Axis CNC Rotary Table

Optional Accessories

Quick Links