Geminis GT7i-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

12,000 / 25,000 kg (26,455 / 55,115 lb)

swing over bed

1,800 mm (70.9 in)

swing over carriage

1,400 mm (55.1 in)

How much does the Geminis GT7i-G2 cost?

Price estimate

Uncertain

We do not have a price for the Geminis GT7i-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 GT7i-G2 is a horizontal CNC lathe sized between the GT5i-G2 and the GT9i-G2: 1,800 mm (70.9 in) of swing over the bed, 1,400 mm (55.1 in) over the carriage, and workpiece weights listed as 12,000 / 25,000 kg (26,455 / 55,115 lb).

Those numbers read most clearly against the model below. The GT5i-G2 swings 1,400 mm (55.1 in) over its bed, exactly what the GT7i-G2 clears over its carriage. A diameter the smaller lathe can only take as a short part beside the carriage runs here at full shaft length. The weight rows meet the same way, since the GT5i-G2 ends at 12,000 kg (26,455 lb), the lower of this model's two figures.

Looking upward, the GT9i-G2 begins at 2,000 mm (78.7 in) of swing over bed and at 25,000 kg (55,115 lb). A part beyond 1,800 mm or 25,000 kg belongs on that machine.

Geminis lists an operator platform for the GT7i-G2 as an option. With work of this diameter the cut is a long way off the floor, so decide early whether the platform goes into the order. The double chip conveyors are optional as well. Standard rows are 2 upper guides Box Type, 1 front guide protected from chips and 4 speed ranges with automatic changeover.

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	12,000 / 25,000 kg (26,455 / 55,115 lb)
Swing Over Bed	1,800 mm (70.9 in)
Swing Over Carriage	1,400 mm (55.1 in)
Length Range	1 - 24 m (39.4 - 944.9 in)
Operator Platform	Optional
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 carriage, the figure the GT5i-G2 only offers over its bed
Upper workpiece weight of 25,000 kg (55,115 lb), with 12,000 kg (26,455 lb) as the lower listed figure
An operator platform is available for access to large-diameter work
Headstock with 4 speed ranges, automatic changeover and main shaft oscillation
Length range of 1 - 24 m (39.4 - 944.9 in)

Limitations

The operator platform is optional, and so are the double conveyors for chip evacuation
Swing over bed stops at 1,800 mm (70.9 in); the GT9i-G2 starts at 2,000 mm (78.7 in)
The table does not say what distinguishes the 12,000 kg and 25,000 kg ratings
Spindle power, torque and speed are not listed

Best For

Shafts and rolls up to 1,400 mm (55.1 in) in diameter turned over the carriage Short parts up to the 1,800 mm (70.9 in) swing over bed Workpieces between the 12,000 kg and 25,000 kg (26,455 / 55,115 lb) ratings Jobs that have outgrown the GT5i-G2 but do not need the GT9i-G2

Frequently Asked Questions

01 Where does the GT7i-G2 sit between the GT5i-G2 and the GT9i-G2?

In the middle on both diameter and weight. The GT5i-G2 has a 1,400 mm (55.1 in) swing over bed and lists 8,000 / 12,000 kg (17,637 / 26,455 lb). The GT7i-G2 has 1,800 mm (70.9 in) and 12,000 / 25,000 kg (26,455 / 55,115 lb). The GT9i-G2 lists 2,000 - 2,600 mm (78.7 - 102.4 in) and 25,000 / 60,000 kg (55,115 / 132,275 lb).

02 Is the operator platform standard on the GT7i-G2?

No. The operator platform row reads "Optional". Given a swing over bed of 1,800 mm (70.9 in), setting tools and watching the cut happen well above floor level, so the platform should be discussed with Geminis when the machine is specified.

03 What is the maximum workpiece weight of the GT7i-G2?

Two figures are listed: 12,000 / 25,000 kg (26,455 / 55,115 lb). The table does not state which setup each one applies to. For a part heavier than 12,000 kg, get Geminis to confirm in writing how the workpiece must be supported to reach 25,000 kg.

04 What guideways does the GT7i-G2 have?

The bed has 2 upper guides Box Type and 1 front guide protected from chips. Box-type guides are sliding ways, favoured on heavy lathes for their load capacity and damping in heavy cuts. The table gives no traverse or feed figures for the axes.