Used Toshiba ULR-628B(H) Precision Grooving Lathe

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Product Highlight

Toshiba Machine ULR-628B(H) is a high-precision CNC grooving lathe developed for ultra-precision machining of cylindrical roll molds. Its precision spindle, fine axis resolution and multi-axis positioning capability make it particularly valuable for optical film, prism, Fresnel and lenticular mold manufacturing. This used machine offers buyers access to specialized Japanese ultra-precision roll machining technology without the capital investment normally associated with purchasing a comparable new system.

Product Description

Used Toshiba Machine ULR-628B(H) high-precision CNC grooving lathe designed for ultra-precision machining of cylindrical roll molds. Equipped with FANUC Series 30i control and precision roll machining capability, this pre-owned machine is well suited for optical film, prism, Fresnel and lenticular roll mold production.

The ULR series uses precision axis control, linear motor feed technology and high-accuracy spindle positioning to support demanding micro-grooving applications.

Technical Specifications

Specification	Details
Brand	Toshiba Machine
Model	ULR-628B(H), subject to final nameplate confirmation
Machine Type	High-Precision CNC Grooving Lathe / Ultra-Precision Roll Lathe
Brand Origin	Japan
Condition	Used / Pre-Owned
CNC Control	FANUC Series 30i-MODEL A on this unit
Maximum Processable Roll Diameter	600 mm
Minimum Processable Roll Diameter	180 mm
Maximum Weight Between Chucks	1,000 kg
Maximum Machining Length / Z-Axis Stroke	2,800 mm
Maximum Width Between Chucks	3,000 mm
Maximum Spindle Speed	600 min⁻¹
Z-Axis Feed Speed	15 m/min
X-Axis Feed Speed	5 m/min
X/Z Programming Resolution	0.01 μm
B/C Axis Programming Resolution	0.00001°
Main Spindle Bearing	High-precision hydrostatic bearing system
B-Axis	High-precision aerostatic bearing design
Machine Mass	Approx. 14,000 kg
Fly-Cutting Capability	Available on ULR-628B(H) configuration
Fly-Cutting Spindle Reference Range	500–10,000 min⁻¹, depending on installed option

The principal ULR-628B(H) capacity figures above correspond to Shibaura Machine's published series specifications. The manufacturer's current specification uses a later FANUC 30i-B control, while this particular unit carries a FANUC Series 30i-MODEL A controller.

The manufacturer also specifies a fly-cutting spindle option using an aerostatic spindle with a 500–10,000 min⁻¹ rotational range.

Applications & Suitable Industries

The used Toshiba ULR-628B(H) is particularly suitable for manufacturers requiring extremely accurate micro-groove and structured-surface machining on cylindrical rolls.

Typical applications include:

Optical film roll mold machining
Prism sheet roll molds
Micro-prism roll molds
Lenticular lens roll molds
Linear Fresnel lens molds
LCD and display optical film tooling
Precision V-groove machining
Circumferential and axial groove cutting
Fine micro-pattern machining on plated rolls
Roll-to-roll embossing master roll production

Shibaura specifically positions the ULR series for high-precision and high-efficiency machining of prism-sheet, linear Fresnel lens and lenticular lens molds. The ULR-628B(H) has also been documented in micro-prism master-roll production.

FAQ

Is this Toshiba ULR-628B(H) a new machine?

No. This listing is for a used Toshiba Machine high-precision grooving lathe. It is offered as pre-owned industrial equipment and is not presented as a new machine or an official Toshiba/Shibaura Machine sales listing.

What is a Toshiba ULR-628B(H) used for?

The ULR-628B(H) is an ultra-precision CNC grooving lathe primarily used to machine cylindrical roll molds for optical films, prism sheets, lenticular lenses and linear Fresnel products.

What is the maximum roll size for the ULR-628B(H)?

The reference specification allows a maximum processable roll diameter of 600 mm, a maximum machining length of 2,800 mm, and up to 1,000 kg between the chucks.

What CNC control does this used Toshiba grooving lathe have?

This unit is equipped with a FANUC Series 30i-MODEL A CNC control, providing a familiar industrial control platform for precision multi-axis machining.

Can the ULR-628B(H) machine micro-grooves and optical roll molds?

Yes. The ULR series was specifically developed for extremely precise grooving of optical roll molds. Depending on tooling and installed options, it can support fine grooves, prism structures, longitudinal patterns and other precision surface structures.