Yamazaki Mazak CNC Lathes / Turning Centers

Mazak QRX-50

Est. $250,000 - $400,000 Specs verified 2026-10-02 · mazak.com Updated 2026-10-02

Image: mazak.com, Yamazaki Mazak

Key Specifications

Max Spindle

6,000 rpm

Spindle Power

11 kW (15 HP) continuous

chuck size

8 in

spindle power intermittent

15 kW (20 HP) (40% ED)

turrets tool storage capacity

rapid traverse x

1,181 ipm (30 m/min)

How much does the Mazak QRX-50 cost?

Estimated price range

Est.$250,000 - $400,000

Our best estimate for a cnc lathes / turning center in this class — not a quote from Yamazaki Mazak. Configuration moves it a long way.

Overview

The Mazak QRX-50 is the 8 in chuck model of the QRX two-turret turning series, with a 6,000 rpm spindle rated 11 kW (15 HP) continuous and 15 kW (20 HP) (40% ED). Mazak lists it as the QRX-50 SG and places it among the tailstock-specification machines, the ones intended for shaft-shaped parts.

The reason to put two turrets on a shaft lathe is that both can cut the same workpiece at once. Mazak describes simultaneous machining with the upper and lower turrets for mass production of shafts, and balance cutting is one of the functions programmed in conversational MAZATROL. With a tool on each side of a slender part the cutting forces oppose each other, which helps keep a long shaft from pushing away from the tool, and the stock removal is shared between two edges.

Both turrets draw on a single spindle motor. At 11 kW (15 HP) continuous, two roughing cuts running together have to fit inside one power budget, so the gain shows up as shorter cycles on medium cuts and less as heavier metal removal. The 15 kW (20 HP) figure is a 40% ED rating and should be treated as headroom for short cuts only. Rapid traverse is 1,181 ipm (30 m/min) in X and 1,575 ipm (40 m/min) in Z, and the machine weighs 16,534 lb (7,500 kg).

Mazak's table for the QRX-50 lists a turret storage capacity of 12, and the series description is of a 12 station drum turret (24 position) taking BMT45 holders. The table has no rotary-tool, Y-axis or second-spindle rows for this model, and it gives no turning diameter, turning length or bar capacity. The QRX-50MSY is the series member with a second spindle and Y-axis, on 6 in chucks.

Full Specifications

Parameter	Value
Chuck Size	8 in
Max Spindle Speed	6,000 rpm
Spindle Power Intermittent	15 kW (20 HP) (40% ED)
Spindle Motor Power	11 kW (15 HP) continuous
Turrets Tool Storage Capacity	12
Rapid Traverse X	1,181 ipm (30 m/min)
Rapid Traverse Z	1,575 ipm (40 m/min)
Machine Weight	16,534 lb (7,500 kg)

Specifications sourced from mazak.com — verified 2026-10-02

Strengths & Limitations

Strengths

8 in chuck, against 6 in on the QRX-50MSY
Upper and lower turrets machine one shaft at the same time, which Mazak describes for the QRX-50 SG as suited to mass production of shaft shapes
6,000 rpm spindle rated 11 kW (15 HP) continuous, with 15 kW (20 HP) available at 40% ED
Rapid traverse of 1,575 ipm (40 m/min) in Z and 1,181 ipm (30 m/min) in X
Series turret is a 12 station drum (24 position) with BMT45 holders that can be mounted reversed by 180°

Limitations

Listed as a tailstock-specification machine with no second-spindle rows, so the back end of a part needs a second operation
The table shows no rotary-tool or Y-axis figures for this model; milled features call for the QRX-50MSY or another machine
One 11 kW (15 HP) continuous motor has to power the cuts of both turrets
No turning diameter, turning length or bar capacity is given in Mazak's table, so the envelope must be confirmed

Best For

Shaft-shaped parts turned between an 8 in chuck and a tailstock Balance cutting of slender shafts with upper and lower turrets Volume production of turned-only parts where two tools in the cut shorten the cycle

Frequently Asked Questions

01 What kind of work is the Mazak QRX-50 meant for?

Shafts. Mazak groups the QRX-50 SG with the QRX-50MY SG as tailstock-specification machines and says simultaneous machining with the upper and lower turrets enables mass production of shaft shapes. The second-spindle models in the series are aimed at bar shapes instead.

02 How does the QRX-50 compare with the QRX-50MSY?

The QRX-50 has an 8 in chuck and weighs 16,534 lb (7,500 kg). The QRX-50MSY has 6 in chucks, a second spindle, a Y-axis with a 709 ipm (18 m/min) rapid, and weighs 17,637 lb (8,000 kg). Both have a 6,000 rpm main spindle rated 11 kW (15 HP) continuous and the same X and Z rapids of 1,181 ipm (30 m/min) and 1,575 ipm (40 m/min).

03 What is the spindle power of the QRX-50?

11 kW (15 HP) continuous, with 15 kW (20 HP) at 40% ED, and a top speed of 6,000 rpm. Because both turrets cut on the same spindle, the two cuts together have to stay within that one motor's rating. Mazak's table gives no torque figure.

04 What tooling does the QRX-50 turret take?

The table lists a turret storage capacity of 12. For the QRX series Mazak describes a 12 station drum turret (24 position) designed for minimum interference, with tool holders to the BMT45 standard that can be mounted reversed by 180°.

05 Does Mazak publish the turning envelope of the QRX-50?

Not in the table for this model. It states the 8 in chuck size, spindle speed and power, rapids and weight, but no maximum turning diameter, turning length, bar capacity or axis travels. Confirm those with Mazak, along with the tailstock specification, before sizing a part to the machine.