Hwacheon Hi-TECH 350

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

Image: hwacheon.com, Hwacheon

Key Specifications

Max Spindle

5,000 rpm (A) / 4,000 rpm (B)

Rapid Traverse

X / Z / Y 20 / 24 / 10 m/min (787 / 945 / 394 ipm); sub-spindle (B) 16 m/min (630 ipm) on YSMC

Spindle Power

A: 18.5 / 15 kW (24.8 / 20.1 hp), opt. 22 / 18.5 kW (29.5 / 24.8 hp); B: 22 / 18.5 kW (29.5 / 24.8 hp)

Max Turn Length

661 to 673 mm (26.0 to 26.5 in); L: 1,261 to 1,273 mm (49.6 to 50.1 in)

swing over bed

Ø700 mm (Ø27.6 in)

swing over saddle

Ø550 mm (Ø21.7 in)

How much does the Hwacheon Hi-TECH 350 cost?

Price estimate

Uncertain

We do not have a price for the Hwacheon Hi-TECH 350 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 350 is a Y-axis turning center: Hwacheon's table for it lists only YMC and YSMC versions, each with 120 mm (4.7 in) of Y travel and live tools. It turns up to Ø420 mm (Ø16.5 in) over a Ø700 mm (Ø27.6 in) swing, with 661 to 673 mm (26.0 to 26.5 in) of turning length on the standard bed and 1,261 to 1,273 mm (49.6 to 50.1 in) on the L.

Two main spindles are offered. The 350A has an 8 in chuck on an A2-6 nose, 5,000 rpm, a Ø75 mm (Ø3.0 in) bore and Ø65 mm (Ø2.6 in) bar capacity, with an 18.5 / 15 kW (24.8 / 20.1 hp) motor or 22 / 18.5 kW (29.5 / 24.8 hp) as an option. The 350B has a 10 in chuck on A2-8, 4,000 rpm, a Ø90 mm (Ø3.5 in) bore, Ø76 mm (Ø3.0 in) bar and the 22 / 18.5 kW motor as standard. The B's 4,000 rpm is notably higher than the 3,500 rpm of the 10 in Hi-TECH 230B, which helps when turning smaller diameters in the larger chuck.

The YSMC is the complete-machining version. Its sub-spindle carries an 8 in chuck on an A2-6 nose, runs to 4,000 rpm with a Ø62 mm (Ø2.4 in) bore and Ø51 mm (Ø2.0 in) bar capacity, and is rated 7.5 / 5.5 kW (10.1 / 7.4 hp). It travels 726 mm (28.6 in) on the 350A YSMC or 714 mm (28.1 in) on the 350B YSMC, at 16 m/min (630 ipm). An 8 in sub-spindle chuck means the second operation can grip a fairly large part, not just a small bar end. The YMC instead keeps a tailstock with a Ø100 mm (Ø3.9 in) cylinder, 120 mm (4.7 in) of quill travel and an MT #5 taper.

Live tools run at 3.7 / 2.2 kW (5.0 / 3.0 hp) and 5,000 rpm with Ø20 mm end mills in ER 32 collets, from a 12-station turret that indexes at 0.25 sec/step and takes □25 mm shanks and Ø50 mm boring bars. Rapids are 20 m/min (787 ipm) on X, 24 m/min (945 ipm) on Z and 10 m/min (394 ipm) on Y. The YMC weighs 7,300 to 7,450 kg (16,094 to 16,424 lb) and the YSMC 7,700 to 7,800 kg (16,975 to 17,196 lb) on the standard bed. Power is 50 kVA for the YMC and 55 kVA for the YSMC, and the control is a FANUC 0i-TF Plus.

Full Specifications

Parameter	Value
Swing Over Bed	Ø700 mm (Ø27.6 in)
Swing Over Saddle	Ø550 mm (Ø21.7 in)
Max Turning Diameter	Ø420 mm (Ø16.5 in)
Standard Turning Diameter	Ø254 mm (Ø10.0 in)
Max Turning Length	661 to 673 mm (26.0 to 26.5 in); L: 1,261 to 1,273 mm (49.6 to 50.1 in)
Chuck Size	8 in (350A) / 10 in (350B); sub-spindle 8 in on YSMC
Spindle Nose	A2-6 (A) / A2-8 (B)
Max Spindle Speed	5,000 rpm (A) / 4,000 rpm (B)
Spindle Bore	Ø75 / Ø90 mm (Ø3.0 / Ø3.5 in) (A / B)
Bar Capacity	Ø65 / Ø76 mm (Ø2.6 / Ø3.0 in) (A / B)
Spindle Bearing Front ID	Ø100 / Ø130 mm (Ø3.9 / Ø5.1 in) (A / B)
Spindle Motor Power	A: 18.5 / 15 kW (24.8 / 20.1 hp), opt. 22 / 18.5 kW (29.5 / 24.8 hp); B: 22 / 18.5 kW (29.5 / 24.8 hp)
Sub Spindle	A2-6, 4,000 rpm, Ø62 mm (Ø2.4 in) bore, Ø51 mm (Ø2.0 in) bar capacity, 7.5 / 5.5 kW (10.1 / 7.4 hp) (YSMC)
Turret Stations	12
Tool Shank Size	□25 mm × Ø50 mm boring bar
Turret Index Time	0.25 sec/step
Rapid Traverse Rate	X / Z / Y 20 / 24 / 10 m/min (787 / 945 / 394 ipm); sub-spindle (B) 16 m/min (630 ipm) on YSMC
X Axis Travel	280 mm (11.0 in); 260 mm (10.2 in) on YSMC
Y Axis Travel	120 mm (4.7 in)
Z Axis Travel	790 mm (31.1 in); L 1,390 mm (54.7 in)
Sub Spindle Travel	726 mm (28.6 in) (350A YSMC) / 714 mm (28.1 in) (350B YSMC)
Tailstock Travel	650 mm (25.6 in); L 1,250 mm (49.2 in) (YMC)
Tailstock Cylinder Diameter	Ø100 mm (Ø3.9 in) (YMC)
Tailstock Quill Travel	120 mm (4.7 in) (YMC)
Tailstock Quill Taper	MT #5 (YMC)
Live Tool Motor	3.7 / 2.2 kW (5.0 / 3.0 hp)
Live Tool Speed Max	5,000 rpm
Live Tool Capacity	End mill Ø20 mm / ER 32 collet
C Axis Indexing	0.0001°
Coolant Tank	190 L (50 US gal) (A) / 240 L (63 US gal) (B)
Power Requirement	50 kVA (YMC) / 55 kVA (YSMC)
Machine Dimensions	3,500 x 2,045 x 2,205 mm (137.8 x 80.5 x 86.8 in); L 4,100 mm (161.4 in) long
Machine Weight	YMC 7,300 to 7,450 kg (16,094 to 16,424 lb), L 7,900 to 8,050 kg; YSMC 7,700 to 7,800 kg (16,975 to 17,196 lb), L 8,800 to 8,900 kg
CNC Control	FANUC 0i-TF Plus

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

Strengths & Limitations

Strengths

Every listed version has 120 mm (4.7 in) of Y travel and live tools
22 / 18.5 kW (29.5 / 24.8 hp) spindle standard on the 350B and optional on the 350A
YSMC sub-spindle with an 8 in chuck and 726 mm (28.6 in) of travel on the 350A
Turning length up to 1,273 mm (50.1 in) on the L bed
Turret takes Ø50 mm boring bars

Limitations

Live tool drive is 3.7 / 2.2 kW (5.0 / 3.0 hp)
X rapid is 20 m/min (787 ipm) and Y 10 m/min (394 ipm)
No 2-axis or plain MC version is listed, so the Y-axis machine is the entry point
Needs 50 to 55 kVA and floor for at least 7,300 kg (16,094 lb)

Best For

Complete machining of flanges and housings up to Ø420 mm on the YSMC Turned parts with off-centre milled features using the Y axis Shafts up to 1,273 mm (50.1 in) long on the L-bed YMC Bar work up to Ø76 mm (Ø3.0 in) on the 350B

Frequently Asked Questions

01 What is the difference between the Hi-TECH 350A and 350B?

The 350A has an 8 in chuck on A2-6, 5,000 rpm, a Ø75 mm (Ø3.0 in) bore and Ø65 mm (Ø2.6 in) bar, with 18.5 / 15 kW (24.8 / 20.1 hp) standard and 22 / 18.5 kW (29.5 / 24.8 hp) optional. The 350B has a 10 in chuck on A2-8, 4,000 rpm, a Ø90 mm (Ø3.5 in) bore, Ø76 mm (Ø3.0 in) bar and the 22 / 18.5 kW motor.

02 Should I choose the YMC or the YSMC version of the Hi-TECH 350?

The YMC has a tailstock with a Ø100 mm (Ø3.9 in) cylinder and MT #5 taper, which suits shafts. The YSMC replaces it with a sub-spindle (8 in chuck, 4,000 rpm, 7.5 / 5.5 kW) for finishing both ends of a part in one cycle. The YSMC weighs 7,700 to 7,800 kg (16,975 to 17,196 lb) and needs 55 kVA against 50 kVA for the YMC.

03 How does the Hi-TECH 350 compare with the Hi-TECH 450B?

The Hi-TECH 450B has a 12 in chuck, 2,500 rpm, a Ø105 mm (Ø4.1 in) bore and Ø89 mm (Ø3.5 in) bar, with a 22 / 18.5 kW (29.5 / 24.8 hp) spindle and a 26 / 22 kW option, and turns up to 737 mm (29.0 in) long. Both turn up to Ø420 mm (Ø16.5 in). The Hi-TECH 350 is the faster of the two at 4,000 to 5,000 rpm, with smaller bar capacity.

04 What are the axis travels on the Hi-TECH 350?

X travel is 280 mm (11.0 in), or 260 mm (10.2 in) on the YSMC. Y travel is 120 mm (4.7 in). Z travel is 790 mm (31.1 in), or 1,390 mm (54.7 in) on the L bed. Rapids are 20 m/min (787 ipm) on X, 24 m/min (945 ipm) on Z and 10 m/min (394 ipm) on Y.