Hwacheon Hi-TECH 850

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

Image: hwacheon.com, Hwacheon

Key Specifications

Max Spindle

1,500 rpm; 1,400 rpm with 24 in chuck; 1,200 rpm with 32 in chuck

Rapid Traverse

X / Z 10 / 12 m/min (394 / 472 ipm); L Z 10 m/min (394 ipm); XL Z 9 m/min (354 ipm); Y 10 m/min (394 ipm) (YMC)

Spindle Power

45 / 37 kW (60.3 / 49.6 hp)

Max Turn Length

2,500 / L 3,500 / XL 5,100 mm (98.4 / 137.8 / 200.8 in) at up to Ø825 mm (Ø32.5 in)

swing over bed

Ø1,050 mm (Ø41.3 in)

max turning diameter

Ø920 mm (Ø36.2 in) for turning lengths up to 385 mm (15.2 in)

How much does the Hwacheon Hi-TECH 850 cost?

Price estimate

Uncertain

We do not have a price for the Hwacheon Hi-TECH 850 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 Hwacheon Hi-TECH 850 is the largest of the Hi-TECH turning centers, with a Ø1,050 mm (Ø41.3 in) swing and a 24 in chuck on an A2-15 spindle. Its turning envelope comes with two diameters. Work up to Ø920 mm (Ø36.2 in) can be turned over a length of 385 mm (15.2 in), which covers flanges, discs and short hubs; along the full bed the limit is Ø825 mm (Ø32.5 in), over 2,500 mm (98.4 in) on the standard bed, 3,500 mm (137.8 in) on the L and 5,100 mm (200.8 in) on the XL.

The spindle has a Ø185 mm (Ø7.3 in) bore for Ø164 mm (Ø6.5 in) bar and a 45 / 37 kW (60.3 / 49.6 hp) motor. The table gives 1,500 rpm as the maximum and 1,400 rpm with a 24 in chuck, although 24 in is also the standard chuck size, so confirm which figure applies to the machine as delivered. With the optional 32 in chuck the limit is 1,200 rpm.

This is a slow-moving, long-reach machine. Rapids are 10 m/min (394 ipm) in X and 12 m/min (472 ipm) in Z, dropping to 9 m/min (354 ipm) in Z on the XL bed. X travel is 485 mm (19.1 in), but only 430 mm (16.9 in) on the XL. The tailstock travels up to 4,800 mm (189.0 in) on the XL bed, on a Ø160 mm (Ø6.3 in) cylinder with an MT #6 quill. The turret has 12 stations indexing at 0.3 sec/step and takes Ø80 mm boring bars.

The YMC version has 220 mm (8.7 in) of Y travel, with 11 / 7.5 kW (14.8 / 10.1 hp) driven tools at 2,500 rpm. Weight ranges from 22,000 to 23,500 kg (48,501 to 51,808 lb) on the standard bed to 30,000 to 32,000 kg (66,138 to 70,547 lb) on the XL, which is 9,760 mm (384.3 in) long. The supply is 85 kVA.

Full Specifications

Parameter	Value
Swing Over Bed	Ø1,050 mm (Ø41.3 in)
Max Turning Diameter	Ø920 mm (Ø36.2 in) for turning lengths up to 385 mm (15.2 in)
Standard Turning Diameter	Ø380 mm (Ø15.0 in)
Max Turning Length	2,500 / L 3,500 / XL 5,100 mm (98.4 / 137.8 / 200.8 in) at up to Ø825 mm (Ø32.5 in)
Chuck Size	24 in (Opt.: 32 in)
Spindle Nose	A2-15
Max Spindle Speed	1,500 rpm; 1,400 rpm with 24 in chuck; 1,200 rpm with 32 in chuck
Spindle Bore	Ø185 mm (Ø7.3 in)
Bar Capacity	Ø164 mm (Ø6.5 in)
Spindle Bearing Front ID	Ø240 mm (Ø9.4 in)
Spindle Motor Power	45 / 37 kW (60.3 / 49.6 hp)
Turret Stations	12
Tool Shank Size	□32 mm × Ø80 mm boring bar
Turret Index Time	0.3 sec/step
Rapid Traverse Rate	X / Z 10 / 12 m/min (394 / 472 ipm); L Z 10 m/min (394 ipm); XL Z 9 m/min (354 ipm); Y 10 m/min (394 ipm) (YMC)
X Axis Travel	485 mm (19.1 in); XL 430 mm (16.9 in)
Y Axis Travel	220 mm (8.7 in) (YMC)
Z Axis Travel	2,650 mm (104.3 in); L 3,650 mm (143.7 in); XL 5,250 mm (206.7 in)
Tailstock Travel	2,500 mm (98.4 in); L 3,500 mm (137.8 in); XL 4,800 mm (189.0 in)
Tailstock Cylinder Diameter	Ø160 mm (Ø6.3 in)
Tailstock Quill Travel	150 mm (5.9 in)
Tailstock Quill Taper	MT #6
Live Tool Motor	11 / 7.5 kW (14.8 / 10.1 hp) (MC / YMC)
Live Tool Speed Max	2,500 rpm (MC / YMC)
Live Tool Capacity	End mill Ø32 mm / ER 50 collet
C Axis Indexing	0.0001°
Coolant Tank	400 L (106 US gal); L 550 L (145 US gal); XL 700 L (185 US gal)
Power Requirement	85 kVA
Machine Dimensions	6,860 x 3,030 x 3,020 mm (270.1 x 119.3 x 118.9 in); L 7,860 mm (309.4 in) long; XL 9,760 x 3,180 mm (384.3 x 125.2 in); YMC 3,180 mm wide
Machine Weight	22,000 to 23,500 kg (48,501 to 51,808 lb); L 25,600 to 27,100 kg (56,438 to 59,745 lb); XL 30,000 to 32,000 kg (66,138 to 70,547 lb)
CNC Control	FANUC 0i-TF Plus

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

Strengths & Limitations

Strengths

Ø920 mm (Ø36.2 in) turning diameter for parts up to 385 mm (15.2 in) long, Ø825 mm (Ø32.5 in) along the bed
XL bed turns up to 5,100 mm (200.8 in)
220 mm (8.7 in) of Y travel on the YMC version with 11 / 7.5 kW (14.8 / 10.1 hp) driven tools
24 in chuck as standard, 32 in as an option
Turret indexes at 0.3 sec/step and takes Ø80 mm boring bars

Limitations

Rapids are 10 / 12 m/min (394 / 472 ipm) in X / Z, and 9 m/min (354 ipm) in Z on the XL
X travel shrinks from 485 mm (19.1 in) to 430 mm (16.9 in) on the XL bed
Spindle speed falls to 1,200 rpm with the 32 in chuck
Bar capacity is Ø164 mm (Ø6.5 in); larger tube needs the Hi-TECH 850BB/BB+
XL weighs 30,000 to 32,000 kg (66,138 to 70,547 lb), so foundations need planning

Best For

Large flanges and discs up to Ø920 mm (Ø36.2 in) and 385 mm (15.2 in) long Shafts and rolls up to Ø825 mm (Ø32.5 in) and 5,100 mm (200.8 in) long Large parts needing off-centre milling with 220 mm (8.7 in) of Y travel Heavy work held in a 32 in chuck

Frequently Asked Questions

01 Why does the Hi-TECH 850 list two maximum turning diameters?

Ø920 mm (Ø36.2 in) is available only for turning lengths up to 385 mm (15.2 in). Along the full turning length, 2,500 mm (98.4 in) on the standard bed up to 5,100 mm (200.8 in) on the XL, the limit is Ø825 mm (Ø32.5 in). Check both figures against a long part with a large flange.

02 How does the Hi-TECH 850 differ from the Hi-TECH 850BB/BB+?

Travels, rapids and turning diameter are shared. The Hi-TECH 850 has a 24 in chuck on an A2-15 nose, a Ø185 mm (Ø7.3 in) bore and 1,500 rpm. The Hi-TECH 850BB/BB+ uses an A2-20 nose with a Ø300 mm (Ø11.8 in) bore on the BB or Ø375 mm (Ø14.8 in) on the BB+, at 1,000 or 750 rpm.

03 What bed lengths are offered?

Standard, L and XL. Z travel is 2,650 mm (104.3 in), 3,650 mm (143.7 in) and 5,250 mm (206.7 in); tailstock travel 2,500 mm (98.4 in), 3,500 mm (137.8 in) and 4,800 mm (189.0 in). The coolant tank grows from 400 L (106 US gal) to 550 L (145 US gal) and 700 L (185 US gal).

04 What does the YMC version add?

A Y axis with 220 mm (8.7 in) of travel and a 10 m/min (394 ipm) rapid, plus driven tools with an 11 / 7.5 kW (14.8 / 10.1 hp) motor at up to 2,500 rpm, taking end mills up to Ø32 mm and ER 50 collets. The YMC machine is 3,180 mm wide against 3,030 mm (119.3 in) for the turning version.

05 How heavy is it?

22,000 to 23,500 kg (48,501 to 51,808 lb) on the standard bed, 25,600 to 27,100 kg (56,438 to 59,745 lb) on the L and 30,000 to 32,000 kg (66,138 to 70,547 lb) on the XL. The standard machine is 6,860 x 3,030 x 3,020 mm (270.1 x 119.3 x 118.9 in).