Geminis GT5i-G2

Specs verified 2026-10-03 · geminislathes.com Updated 2026-10-03

Image: geminislathes.com, Geminis

Key Specifications

guideways

2 upper guides Box Type

front guide

1 front guide protected from chips

chip evacuation

By means of optional double conveyors

max workpiece weight

8,000 / 12,000 kg (17,637 / 26,455 lb)

swing over bed

1,400 mm (55.1 in)

swing over carriage

1,050 mm (41.3 in)

How much does the Geminis GT5i-G2 cost?

Price estimate

Uncertain

We do not have a price for the Geminis GT5i-G2 that we can stand behind, so we show no number. Configuration, options and installation move the final price a long way: a quote is the reliable figure.

Overview

The Geminis GT5i-G2 is a heavy horizontal CNC lathe with a 1,400 mm (55.1 in) swing over the bed and a 1,050 mm (41.3 in) swing over the carriage. Geminis lists two maximum workpiece weights for it, 8,000 / 12,000 kg (17,637 / 26,455 lb), and a length range of 1 - 24 m (39.4 - 944.9 in).

The two swing figures set different limits. A flange or disc short enough to stay clear of the carriage can use the full 1,400 mm. A shaft or roll that extends over the carriage is held to 1,050 mm, 25% less, and that smaller figure is the one to size long work against.

The bed carries 2 upper guides Box Type and 1 front guide protected from chips. The headstock has 4 speed ranges with automatic changeover and main shaft oscillation, so moving between ranges does not need the operator at the gearbox. Chip evacuation is by double conveyors, and those are listed as optional: they have to be written into the order.

A close relative is the GT5i-G4, which keeps the 1,400 mm (55.1 in) swing over bed and the same weight row but lists 4 upper guides and 1,100 mm (43.3 in) over the carriage.

Full Specifications

Parameter	Value
Guideways	2 upper guides Box Type
Front Guide	1 front guide protected from chips
Chip Evacuation	By means of optional double conveyors
Max Workpiece Weight	8,000 / 12,000 kg (17,637 / 26,455 lb)
Swing Over Bed	1,400 mm (55.1 in)
Swing Over Carriage	1,050 mm (41.3 in)
Length Range	1 - 24 m (39.4 - 944.9 in)
Spindle Speed Ranges	4 speed ranges with automatic changeover and main shaft oscillation

Specifications sourced from geminislathes.com — verified 2026-10-03

Strengths & Limitations

Strengths

1,400 mm (55.1 in) swing over the bed for short, large-diameter parts such as flanges and discs
Listed length range of 1 - 24 m (39.4 - 944.9 in), so the same model covers short work and very long shafts
4 speed ranges with automatic changeover and main shaft oscillation on the headstock
Bed with 2 upper guides Box Type plus 1 front guide protected from chips

Limitations

Long work passing over the carriage is limited to 1,050 mm (41.3 in), 25% less than the 1,400 mm (55.1 in) swing over the bed
Chip evacuation relies on double conveyors that are listed as optional
Two workpiece weights are given, 8,000 / 12,000 kg (17,637 / 26,455 lb), without the table saying which arrangement carries the higher one
No spindle speed, power or torque figure is listed, so cutting capacity has to be confirmed with Geminis

Best For

Shafts and rolls up to 1,050 mm (41.3 in) in diameter over the carriage Short discs and flanges inside the 1,400 mm (55.1 in) swing over bed Workpieces within the 8,000 / 12,000 kg (17,637 / 26,455 lb) weight figures Long parts that fit the 1 - 24 m (39.4 - 944.9 in) length range

Frequently Asked Questions

01 What diameter can the GT5i-G2 turn?

It depends on where the part sits. Swing over the bed is 1,400 mm (55.1 in), which applies to short parts that stay clear of the carriage. Swing over the carriage is 1,050 mm (41.3 in), and that is the limit for shafts, rolls and any other work the carriage has to pass beneath.

02 How heavy a workpiece can the GT5i-G2 take?

Geminis lists 8,000 / 12,000 kg (17,637 / 26,455 lb). The table gives the two figures without stating what separates them, so a buyer with a part above 8,000 kg should ask Geminis which support arrangement the 12,000 kg figure assumes before relying on it.

03 How does the GT5i-G2 differ from the GT5i-G4?

Guideways and carriage clearance. The GT5i-G2 has 2 upper guides Box Type and 1,050 mm (41.3 in) of swing over the carriage. The GT5i-G4 lists 4 upper guides Box Type and 1,100 mm (43.3 in) over the carriage. Swing over bed is 1,400 mm (55.1 in) on both.

04 Does the GT5i-G2 come with a chip conveyor?

Not as listed. The chip evacuation row reads "By means of optional double conveyors", so the conveyors are an option. On a lathe of this swing the chip volume is large, and the conveyors should be treated as part of the specification from the start.