Hwacheon Hi-TECH 550BB

Big bore heavy duty horizontal turning center

Hi-TECH BB Series

Built to order. Ask for lead time.

Overview

Big bore box-way lathe, Ø195 mm spindle bore, Ø590 x 3,200 mm turning capacity

The Hi-TECH 550BB is a big bore heavy duty turning center for long shafts and pipe, the kind of work Hwacheon shows for oilfield drill pipe, casing adaptors and steel oil pipe. Its A2-15 spindle has a 195 mm through hole and 190 mm bar capacity and runs to 1,000 rpm on a 37 / 30 kW motor through a gear transmission. It swings 800 mm and cuts up to 590 mm in diameter and 1,100, 2,100 or 3,200 mm long on box ways, with a 12-station turret that indexes in 0.2 seconds. MC versions add a turnmill with a C axis, and the control is a FANUC 0i-TF Plus with a 31i-B option.

Guide: Swiss-type lathe or conventional CNC lathe: which fits your parts?

At a glance

Max turning diameter: Ø23.2 in
Max turning length: 43.3 in (L: 82.7 in, XL: 126.0 in)
Chuck size: Ø18.5 in air chuck (opt.)
Spindle speed: 1,000 rpm
Control: FANUC 0i-TF Plus (31i-B opt.)

Features

01195 mm through-spindle boreThe A2-15 spindle has a 195 mm through hole and passes bar up to 190 mm, on 240 mm bearings. Its grease-lubricated gear spindle gives 3,363.5 Nm at low speed (30 minute rating).
02Chucks at both ends of the spindleAn optional 470 mm air chuck mounts in front of the spindle and an optional manual chuck at the rear, so long pipe is held at both ends. A 20 in. manual chuck is listed for the 550BB.
03Loading from the rearThe side cover opens so hoist-lifted parts can be loaded and unloaded from the rear of the spindle.
04Wide turret disc standardThe 12-station turret uses a wide disc as standard and takes boring bars up to 60 mm by 600 mm.
05Thread repair and tool load monitoringManual Guide i includes a thread repair function for re-cutting a stripped thread. L-HTLD tool load detection is standard.

Video

Hi-TECH BB series, big bore lathes

Specifications

Item		Hi-TECH 550BB
Item		Hi-TECH 550BB [L / XL]	Hi-TECH 550BB [L / XL] MC
Capacity
Swing over bedin	in	Ø31.5	Ø31.5
Max cutting diameterin	in	Ø23.2	Ø23.2
Standard cutting diameterin	in	Ø10.8	Ø10.8
Max cutting lengthin	in	43.3 [L : 82.7] [XL : 126.0]	43.3 [L : 82.7] [XL : 126.0]
Chuck sizein	in	(Opt) Air Chuck Ø470	(Opt) Air Chuck Ø470
Spindle
Type of spindle noseASA	ASA	A2-15	A2-15
Max spindle speedrpm	rpm	1,000	1,000
Through spindle hole diameterin	in	Ø7.7	Ø7.7
Max bar sizein	in	Ø7.5	Ø7.5
Spindle bearing inner diameterin	in	Ø9.4	Ø9.4
Spindle motorHP	HP	49.6 / 40.2	49.6 / 40.2
Turret
Number of tool stationea	ea	12	12
Tool size (out dia x boring bar size)in	in	□1.3 × Ø2.4	□1.3 × Ø2.4
Turret indexing timesec/step	sec/step	0.2	0.2
Axes
Rapid traverse (X / Z)ipm	ipm	787 / 945 [L : 787 / 787] [XL : 787 / 394]	787 / 945 [L : 787 / 787] [XL : 787 / 394]
Max. stroke (X / Z)in	in	13.6 / 45.3 [L : 13.6 / 84.6] [XL : 13.6 / 128.0]	13.6 / 45.3 [L : 13.6 / 84.6] [XL : 13.6 / 128.0]
Feed motor (X / Z)HP	HP	5.4 / 5.4 [L, XL : 5.4 / 9.4]	5.4 / 5.4 [L, XL : 5.4 / 9.4]
Tailstock
Tailstock strokein	in	38.6 [L : 78.0] [XL : 121.3]	38.6 [L : 78.0] [XL : 121.3]
Cylinder diain	in	Ø4.7	Ø4.7
Quill strokein	in	5.9	5.9
Quill taperMT	MT	#5	#5
Turnmill (opt.)
Spindle motorHP	HP	-	10.1 / 7.4
Max spindle speedrpm	rpm	-	4,000
Max drill/tap size (endmill / collet size)in	in	-	Ø1.3 / ER 40
Min. index angledeg	deg	-	0.0001
Tank capacity
Lubricationgal	gal	3.2	3.2
Hydraulicgal	gal	13.2	13.2
Coolantgal	gal	66.0 [L :100.4] [XL : 153.2]	66.0 [L :100.4] [XL : 153.2]
Power sources
Electrical power supplykVA	kVA	75	75
Machine size
Heightin	in	94.5 [L :96.5] [XL : 104.7]	94.5 [L :96.5] [XL : 104.7]
Floor space (L x W)in	in	180.7 x 96.5 [L :220.1 x 96.5] [XL :271.3 x 102.4]	180.7 x 96.5 [L :220.1 x 96.5] [XL :271.3 x 102.4]
Weightlb	lb	23,589 [L :28,660] [XL :36,817]	24,692 [L :29,762] [XL :37,920]
NC controller		Fanuc 0i-TF Plus (Opt : Fanuc 31i-B)	Fanuc 0i-TF Plus (Opt : Fanuc 31i-B)

Specifications from the manufacturer, converted from metric. Confirm the configuration on your quote.

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Before you order: what your shop needs ready and the 2026 Section 179 rules

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