Hi-TECH 550BB – Big Bore Lathe

Horizontal lathe with Big Bore spindle (180 mm) for tube machining
The Hi-TECH 550BB is a horizontal lathe with a Big Bore spindle, specifically designed for tube machining. Featuring an extra-large spindle bore of 180 mm, wide box guideways, and a widened turret, it provides optimal stability and reduced vibrations. The machine is ideal for machining long workpieces and offers numerous options, including pneumatic chucks and driven tools. The Hi-TECH BB series stands out for its high performance, reliability, and precision.

Available with

  • Siemens 828D
  • Fanuc 0i Plus
Hi-TECH 550BB – Big Bore Lathe has Siemens 828D available
Hi-TECH 550BB – Big Bore Lathe has Fanuc 0i Plus available

The Big Bore (BB and BB+) variants of the box-guideway-based Hi-TECH 550, Hi-TECH 700, and Hi-TECH 850 lathes feature an extra-large spindle bore, allowing clamping of diameters from 190 to 370 mm. Additionally, the Big Bore design includes a widened turret with two consecutive BMT tool holders, providing optimal support for long tools—commonly used for internal tube machining—and significantly reducing vibrations. The main spindle can also be equipped with two pneumatic chucks: one in the workspace and one at the rear, enabling stable support of long tubes while facilitating rear feeding and unloading.

Thanks to wide box guideways and high torque achieved through powerful drives and gearing, the Hi-TECH BB series leads the competition in stability, reliability, and performance.

Size comparison of the Big Bore series

ModelSpindle bore
Hi-TECH 550BBØ180 mm
Hi-TECH 700BBØ180 mm
Hi-TECH 700BB+Ø295 mm
Hi-TECH 850BBØ295 mm
Hi-TECH 850BB+Ø370 mm

Hi-TECH 550BB

  • Turning diameter over bed: 800 mm
  • Max. turning length: 1,150 mm (long version: 2,150 mm)
  • Optional pneumatic chuck, diameter: 470 mm
  • Inner spindle bearing diameter: 240 mm
  • Powerful spindle motor: 37/30 kW

Hi-TECH 700BB and BB+

  • Turning diameter over bed: 900 mm
  • Max. turning length: 2,050 mm
  • Optional pneumatic chuck: Ø470 mm (BB+: Ø630 mm)
  • Inner spindle bearing diameter: Ø240 mm (BB+: Ø360 mm)
  • Powerful spindle motor: 45/37 kW

Hi-TECH 850BB and BB+

  • Turning diameter over bed: 1,050 mm
  • Max. turning length: 2,650 mm (long version: 3,650 mm)
  • Optional pneumatic chuck: Ø630 mm (BB+: Ø850 mm)
  • Inner spindle bearing diameter: Ø360 mm (BB+: Ø440 mm)
  • Powerful spindle motor: 45/37 kW
  • Optional driven tools: 11/7.5 kW
  • Optional Y-axis with 220 mm traverse path

Size of Hi-TECH 550BB – Big Bore Lathe

Chuck-Size mm 470
Max. cutting diameter mm 590
Swing over bed mm 800
Machine bed of Hi-TECH 550BB – Big Bore Lathe

Tradition Meets Modernity

Over 80 years of detailed experience: Hwacheon combines traditional craftsmanship with modern technology. Our expertise in machine tool manufacturing ensures high production quality and continuous innovation for future-proof concepts in the German market.

Flat Guides

Hi-TECH 550BB – Big Bore Lathe has Flachführungen available

Excellent Damping Properties: Box or flat guides effectively absorb vibrations from the machining process by transferring them into the machine bed due to their large contact surface. Hand-fitted and scraped by experienced staff, these guides ensure precision. Central oil lubrication provides continuous lubrication with bedway oil, while the Turcite coating on the sliding surface offers excellent emergency running properties. Machines with flat guides are more durable and can handle higher chip volumes. Thanks to these unique features, they are considered particularly powerful and reliable.

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Performance in Focus

Power for your production: Our machines are designed for maximum productivity and availability. Top-class engineering and craftsmanship provide you with a crucial competitive advantage – all for your business success.

Technical Data

Item Unit Hi-TECH 550BB Hi-TECH 550BBL Hi-TECH 550BBXL
Axis-Stroke (X / Y / Z) mm 345 / - / 1150 345 / - / 2150 345 / - / 3250
Spindle power kw 37/30 37 / 30
Spindle speed rpm 1500
Spindle torque nm 3364 / 2730 3363.5 / 2730 3364 / 2730
Rapid speed m_min 20 / - / 24 20 / - / 20 20 / - / 10
Tool shank none BMT-75 / BH
Number of tools none 12
Machine weight kg 10000 12500 16000
Max. cutting diameter mm 590
Chuck-Size mm 470
Swing over bed mm 800
Max. Bar size mm 190
Coolant tank vol. l 250 380 580
Max. cutting length mm 0 2100 2

Configurations

Configuration
Y MC
Hi-TECH 550BB Optional
Hi-TECH 550BB L Optional
Hi-TECH 550BB XL Optional
MC: Turret with Driven Tools | Y: Y axis | S: Sub spindle | L: Long bed version | XL: Extra Long bed version | A/B/C: Chuck and Bar size

Features of Hi-TECH 550BB – Big Bore Lathe

Clamping Technology

Hi-TECH 550BB – Big Bore Lathe has Chuck / Clamping available
Chuck-Size mm 470

Flat Guides

Hi-TECH 550BB – Big Bore Lathe has Flachführungen available

Excellent Damping Properties: Box or flat guides effectively absorb vibrations from the machining process by transferring them into the machine bed due to their large contact surface. Hand-fitted and scraped by experienced staff, these guides ensure precision. Central oil lubrication provides continuous lubrication with bedway oil, while the Turcite coating on the sliding surface offers excellent emergency running properties. Machines with flat guides are more durable and can handle higher chip volumes. Thanks to these unique features, they are considered particularly powerful and reliable.

Peripherals and accessories

Hi-TECH 550BB – Big Bore Lathe has Peripherals and accessories available

Powerful Gear Spindle

High-Torque Drives for Heavy Machining: Lathes with gear spindles offer significantly higher torque than those with motor spindles. By selecting the appropriate gear ratio, torque can be optimally utilized within the speed range of the ideal cutting speed. Large spindle bearings and shaft diameters robustly absorb process forces and peaks, ensuring high durability. The gear stage can be conveniently selected via M-functions.

  • Spindle power
    37/30
    none
  • Spindle power
    37 / 30
    kw
  • Spindle speed
    1500
    rpm
  • Spindle torque
    3364 / 2730
    none
  • Spindle torque
    (30 min./konst.)
    3363.5 / 2730
    nm
  • Spindle torque
    3364 / 2730
    nm

Wide Turret Disk

Maximum Stability and Precision for Your Tools!: Our wide double-row turret enables the use of particularly long turning and boring tools, secured with two holders for significantly higher holding torque. This design effectively reduces vibrations, improves tool life, and optimizes surface quality, making it process-reliable and cost-effective, especially for large length-to-diameter ratios. Even standard turning operations benefit from the superior stability of the wide turret disk, while actively vibration-damping tools can be integrated.

  • Tool shank
    BMT-75 / BH
    none

Driven Tools

Precision and Versatility Combined: Driven tools on lathes significantly expand machining capabilities. They enable milling, drilling, and other processes directly on the lathe, reducing re-clamping operations and minimizing downtime. Using various tools in a single setup increases machining accuracy and boosts overall productivity.

Steady Rest Carriage

Stability for Precise Results: The steady rest ensures maximum precision for long workpieces through optimal support. It reduces vibrations, improves surface quality, and enables precise machining even for demanding projects.

High-Quality Pretensioned Ball Screws

Thermal Stability for Precision and Reliability: Pretensioned ball screws reliably and stably compensate for thermal expansion. This technology prevents unwanted elongation of the spindles, ensuring lasting precision and consistently high machining accuracy over extended operating periods.

Excellent Chip Disposal

Perfect Chip Removal for Your Machine!: Our innovative chip disposal systems reliably remove chips, reduce heat, and optimize machining. High-quality components ensure uninterrupted operation and maximum process reliability.

  • Coolant tank vol.
    250
    l
  • Coolant tank vol.
    380
    l
  • Coolant tank vol.
    580
    l

Other features and options

BMT-75 / VDI 50, Turret, Tailstock, Siemens 828D, Fanuc 0i Plus, Automatic Tool Changer, Chip Conveyor, Work table, Tool measuring, Machine Size

Stock and Demonstration Machines

CUTEX-180

CUTEX-180

Universal lathe with linear guideways for chuck sizes Ø150–200 mm (6–8 inch), Y-axis, sub-spindle
The CUTEX-180 is a CNC lathe with linear guideways for Ø150–200 mm chucks, optional Y-axis, and sub-spindle. It delivers high metal removal rates, precision, and stability with a Meehanite cast bed and 24-station turret. Its ergonomic design and easy maintenance boost productivity.
Chuck-Size mm 155 - 200
Max. cutting diameter mm 350
Swing over bed mm 700
Showroom Bochum

CUTEX-180BL (Siemens 828D)

Measuring / Monitoring
  • Tool Presetter
Clamping
  • Foot Switch to clamp and unclamp the chuck
  • 200 mm / 8 inch - 3 jaw Hydraulic Chuck (Seoam)
Shaft maching
  • Hydraulic Tailstock
Bar machining
  • PLC-preparation for Barfeeder Interface
Siemens options
  • Siemens 828D with 15" Display
Main Drive (lathes)
  • Main Drive with 4500 rpm
Coolant / Chip disposal
  • High Pressure Coolant Pump 6 Bar
  • Chip Conveyor, sideways (Hwacheon)
  • Coolant tank and pump
Inquiry
Available ex stock

CUTEX-180BL YSMC (Siemens 828D)

Turret
  • Turret with driven tools with 5 000 rpm (5.6 / 3.7 kW)
Coolant / Chip disposal
  • High Pressure Coolant Pump 15 Bar
  • Chip Conveyor, sideways (Hwacheon)
  • Coolant tank and pump
  • Enhanced coolant tank (Hwacheon)
Measuring / Monitoring
  • Tool Presetter (Main/ Sub spindle)
Clamping
  • Foot Switch to clamp and unclamp the chuck
  • 200 mm / 8 inch - 3 jaw Hydraulic Chuck (Seoam)
Automation (machine side)
  • Parts Catcher on sub spindle side
Shaft maching
  • Hydraulic Tailstock
Bar machining
  • PLC-preparation for Barfeeder Interface
Siemens options
  • Siemens 828D with 15" Display
Main Drive (lathes)
  • Main Drive with 4500 rpm
Y-Axis (lathe)
  • Y-Axis with ±55 mm stroke
Sub spindle (lathe)
  • Sub spindle with 6,000 rpm (7.4 / 4.9 kW) STD
Inquiry
Showroom Bochum

D2-5AX 12k14k (Fanuc-31i)

Spindle and drive (milling)
  • Milling spindle with 12,000 rpm (37 kW)
  • Milling spindle with 14,000 rpm (37 / 22 kW), Built-In
  • Tool holder BBT-40
Tool magazin
  • ATC with 60 Tools
  • Magazin with 30 tools
Coolant / Chip disposal
  • Hinge- or Scraper Type Chip Conveyor
  • Coolant Through Spindle (CTS) 30 Bar
  • Air through spindle
Measuring / Monitoring
  • Absolute angular encoder in B- and C-Axis
Tool and workpiece probes (Blum)
  • Tool probe with tethered signal transmission (Blum)
Fanuc Options
  • Fanuc 31i-B5 Plus
  • Helical Interpolation
  • HTDC (Hwacheon Thermal Displacement Control System)
  • Data Server 1GB (only for Fanuc 31i)
  • Data Server 16GB
  • Touch Display for Fanuc 0i-MF/TF Plus
Rotary axis
  • Round table 500 mm (Standard with AWC)
  • Standard Table 600mm
Inquiry

Hi-TECH 550BB – Big Bore Lathe

Horizontal lathe with Big Bore spindle (180 mm) for tube machining
The Hi-TECH 550BB is a horizontal lathe with a Big Bore spindle, specifically designed for tube machining. Featuring an extra-large spindle bore of 180 mm, wide box guideways, and a widened turret, it provides optimal stability and reduced vibrations. The machine is ideal for machining long workpieces and offers numerous options, including pneumatic chucks and driven tools. The Hi-TECH BB series...
Chuck-Size mm 470
Max. cutting diameter mm 590
Swing over bed mm 800

Hi-TECH 700BB / BB+ – Big Bore Lathe

Horizontal lathe with Big Bore spindle (180–295 mm) for tube machining
The Hi-TECH 700BB/BB+ lathes feature an extra-large spindle bore of up to 370 mm. Equipped with a reinforced turret for long tools, they ensure stable machining of tubes. Additionally, wide box guideways and powerful drives provide maximum stability and reliability.
Chuck-Size mm 470 - 630
Max. cutting diameter mm 680
Swing over bed mm 900 - 990

Hi-TECH 850BB / BB+ – Big Bore Lathe

Horizontal lathe with Big Bore spindle (295–370 mm) for tube machining
The Hi-TECH 850BB / BB+ is a horizontal lathe with a Big Bore spindle, specifically designed for tube machining. Featuring an extra-large spindle bore of up to 370 mm, wide box guideways, and a widened turret, it provides optimal stability and reduced vibrations. The machine is ideal for machining long workpieces and offers numerous options, including pneumatic chucks, driven tools, and an...
Chuck-Size mm 630 - 850
Max. cutting diameter mm 920
Swing over bed mm 1050