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YCM GT-300LMB

YCM GT-300LMB CNC turning center

Image: ycmcnc.com, YCM

01

Key Specifications

Max Spindle

3,000 rpm

Spindle Power

(L)11/18.5 (H)15/18.5 kW

Max Turn Length

1,233 mm (48.54 in)

max turning diameter

ø360 mm (ø14.17 in)

chuck size

12

spindle nose

A2-8

02

How much does the YCM GT-300LMB cost?

Price estimate

Uncertain

We do not have a price for the YCM GT-300LMB 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.

YCM GT-300LMB — price

Price estimate: uncertain

We have no price for the YCM GT-300LMB that we can cite and no estimate we can stand behind, so this page shows no number rather than a guess. A quote from YCM or an authorised dealer is the reliable figure.

What moves the final price

  • Spindle, control and probing options
  • Tool changer capacity and tooling package
  • Automation — pallet changers, bar feeders, robot cells
  • Freight, rigging, installation and training
  • Region, dealer and time of year

Want a specific price for the YCM GT-300LMB?

Tell us who you are and we'll pass your request to YCM or an authorised dealer.

03

Overview

Long bed, big bore, live tools: the YCM GT-300LMB combines the three. Its maximum turning length is 1,233 mm (48.54 in) on a Z travel of 1,283 mm (50.51 in), the spindle has a ø105 mm (ø4.13 in) through hole, and the 12-station radial power turret drives tools at 3,000 rpm.

The length sets it apart inside the GT series, where the next longest machine, the GT-300MA, stops at 742 mm (29.21 in). Long shafts such as hydraulic cylinder rods, drive shafts, rolls and spindles are the obvious work, and milled keyways or drilled cross holes can be added without a second machine. Turning diameter is ø360 mm (ø14.17 in).

A long part needs support, and the tailstock quill row gives 1,155 mm of stroke with an MT-5 taper. YCM builds the tailstock on box ways that are part of the base casting, and offers a live quill as an option. For very slender shafts a steady rest would be the usual addition; the page does not list one, so ask.

The ø91 mm (ø3.58 in) draw bar hole lets long bar or tube pass through the headstock. The motor peaks at 18.5 kW in both ranges and the spindle runs to 3,000 rpm. Live tool torque is 3.57 kgf-m. Rapids are 20 m/min (787 ipm) in X and 24 m/min (945 ipm) in Z, which means a full Z traverse takes a few seconds. The machine weighs 7,850 kg (17,306 lb).

04

Full Specifications

Parameter Value
Max Turning Diameter ø360 mm (ø14.17 in)
Max Turning Length 1,233 mm (48.54 in)
Chuck Size 12
Spindle Nose A2-8
Spindle Bore ø105 mm (ø4.13 in)
Hole Through Draw Bar ø91 mm (ø3.58 in)
Max Spindle Speed 3,000 rpm
X Axis Travel 275 (180+95) mm
Z Axis Travel 1,283 mm (50.51 in)
X Axis Rapid Traverse 20 m/min (787 ipm)
X Axis Cutting Feed Rate 1~10,000 mm/min (0.04~394 ipm)
Z Axis Rapid Traverse 24 m/min (945 ipm)
Z Axis Cutting Feed Rate 1~10,000 mm/min (0.04~394 ipm)
Spindle Motor Power (L)11/18.5 (H)15/18.5 kW
Turret Type Radial Power Turret (Servo Rotation, Hydraulic Clamping)
Turret Stations 12 stations
Live Tool Speed 3,000 rpm
Live Tool Torque 3.57 kgf-m
Swing Over Turret ø650 mm (ø25.59 in)
Tailstock Quill Taper MT-5
Tailstock Quill Stroke 1,155 mm
Machine Weight 7,850 kg (17,306 lb)

Specifications sourced from ycmcnc.com — verified 2026-10-05

05

Strengths & Limitations

Strengths

  • 1,233 mm (48.54 in) maximum turning length
  • ø105 mm (ø4.13 in) spindle bore with a ø91 mm (ø3.58 in) draw bar hole
  • 12-station radial power turret with live tools at 3,000 rpm
  • Tailstock quill stroke of 1,155 mm on box ways
  • 18.5 kW peak spindle motor

Limitations

  • Spindle speed is limited to 3,000 rpm
  • Live tool torque of 3.57 kgf-m is no higher than on the shorter GT machines
  • No steady rest is mentioned on the page
  • No Y axis for off-centre milling
06

Best For

Long shafts, rods and rolls up to 1,233 mm (48.54 in) Tube and bar work through a ø91 mm (ø3.58 in) draw bar Shaft parts with keyways and cross holes machined in one setup
07

Frequently Asked Questions

01 How long a part can the GT-300LMB turn?

Maximum turning length is 1,233 mm (48.54 in) and Z travel is 1,283 mm (50.51 in). Maximum turning diameter is ø360 mm (ø14.17 in), and swing over the turret is ø650 mm (ø25.59 in).

02 What does the GT-300LMB add over the GT-300MA?

Length and bore. The GT-300MA turns 742 mm (29.21 in) through a ø88 mm (ø3.46 in) spindle and weighs 6,950 kg (15,322 lb). The GT-300LMB turns 1,233 mm (48.54 in) through a ø105 mm (ø4.13 in) spindle and weighs 7,850 kg (17,306 lb).

03 What are the live tool specifications?

Live tool motor speed is 3,000 rpm and torque is 3.57 kgf-m. The turret is a 12-station radial power turret with servo rotation and hydraulic clamping. X travel is 275 mm, printed as 180+95.

04 How is the workpiece supported at the tail end?

By a tailstock with an MT-5 quill and a quill stroke listed as 1,155 mm. YCM says the tailstock runs on hardened and ground box ways that are one piece with the base, and that a live quill is optional.

08

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09

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