Sliding Head LFV Technology

L12-VII

Handling All Small-diameter Work with 7-axis Control

The option to switch between Guide Bush Mode (Maximum speed of 15,000 min-1) and Non-Guide Bush mode (Maximum speed of 12,000 min-1) as standard.

Machining using a guide bushing is a useful method for long, slender work-pieces. On the other hand, using an interchangeable guide bushing with short workpieces leaves a long remnant bar, increasing material costs. The optimum machine configuration differs according to the work-piece to be machined, and up until now a variety of different machines have been required. The L12 solves this problem by reducing the length of bar remnant in Guide Bush Less Mode. The machine is capable of handling 16 mm diameter bar with an expansion kit.

Sliding Head LFV Technology

L12-X

Adoption of a modular tooling system
Addition of Y2 axis for even higher functionality

A modular tooling system has been adopted for the gang and back tool posts. The wide variety of tooling layouts available, such as “adjustable angle end-face spindle”, allows for angled hole drilling enhancing flexible machining. The addition of a Y2 axis to the back spindle strengthens back machining. This improves the degree of freedom for process allocation and increases the maximum number of tools that can be installed to 38.

Additionally, adoption of a built-in motor for the back spindle drive enables a maximum speed of 12,000 min-1. This reduces the acceleration/deceleration time to improve productivity. The machine is capable of handling 16 mm diameter bar with an expansion kit.

ItemL12-VIIL12-X
Maximum machining diameter (D)12 mm / 16 mm option12 mm / 16 mm option
Maximum machining length (L)GB135 mm / 1 chucking135 mm / 1 chucking
GBL30mm30 mm
Max. front drilling diameter8 mm8 mm
Max. tapping diameter (front spindle)M6M6
Spindle through-hole diameter20 mm20 mm
Main spindle speedGB: Max. 15,000min⁻¹Max. 15,000 min⁻¹ (GB)
GBL: Max. 12,000min⁻¹Max. 12,000 min⁻¹ (GBL)
Max. chuck diameter of the back spindle12mm12 mm
Max. protrusion length of the back spindle workpiece30mm30 mm
Back spindle speedMax. 10,000min⁻¹Max. 12,000 min⁻¹
Gang rotary tool spindle speedMax. 10,000min⁻¹Max. 10,000 min⁻¹
Back tool post rotary tool spindle speedMax. 9,000min⁻¹Max. 9,000 min⁻¹
Number of tools to be mounted2738
Gang turning tool67
Gang rotary tool4 to 96 to 17
Back tool post48
Tool sizeTool10 mm10 mm, 12 mm option
Sleeve19.05 mm19.05 mm
Rapid feed rate (all axes)35 m/min35 m/min
MotorsSpindle drive2.2 / 3.7 kW2.2 / 3.7 kW
Gang tool post rotary tool drive0.75 kW0.75 kW
Back spindle drive0.4 / 0.75 kW0.75 / 1.15 kW
Back tool post rotary tool drive Option0.5 kW0.5 kW
Coolant oil0.25 kW0.25 kW
Centre height1,000 mm1,050 mm
Rated power consumption6.1 kVA8 kVA
Full-load current22 A22 A
Main breaker capacity30 A30 A
Weight1,700 kg2,200 kg

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