NEW SMTCL HTC50 Series Slant Bed CNC Lathe

SMTCL HTC50 Series Slant Bed CNC Lathe

The SMTCL HTC50 Series is a production-oriented slant bed CNC lathe platform designed for machining medium to large shaft and disc-type components.

Available in Q, H and S configurations, the HTC50 Series allows the machine to be selected around the required balance of general-purpose capability, production efficiency and heavy-cutting performance.

The Series covers a broad range of turning lengths and spindle configurations, making it suitable for automotive components, engineering machinery, hydraulic parts, shafts, piston rods, cylinder components, valves and general industrial production.

Compared with the smaller HTC40 platform, the HTC50 provides increased turning capacity, larger spindle options, greater bar capacity and substantially higher spindle torque.

The HTC50 Series is therefore particularly suitable for workshops requiring stronger production capability while retaining the flexibility of a conventional horizontal CNC turning centre.


HTC50 Series Configurations

The HTC50 platform is available in three primary configurations:


HTC50Q – General-Purpose CNC Turning

The HTC50Q is the mainstream general-purpose version.

It is designed for workshops requiring broad turning capability, practical spindle speed and strong overall value.

Best suited for:

• General engineering

• Engineering machinery

• Shaft components

• Disc-type components

• Hydraulic components

• Mixed production

• Medium-batch manufacturing


HTC50H – High-Efficiency CNC Turning

The HTC50H is the high-efficiency configuration.

It places greater emphasis on:

• Higher spindle torque

• Production efficiency

• Machining stability

• High-utilisation production

• Automotive applications

• Pump and motor components

• Repetitive production machining

The H Series is particularly appropriate where cycle time and stable production performance are more important than simply minimising machine investment.


HTC50S – Heavy-Cutting CNC Turning

The HTC50S is the heavy-cutting configuration.

It places greater emphasis on:

• Strong structural rigidity

• Larger spindle interface

• Larger bar capacity

• Stronger chucking capability

• Heavy roughing

• Higher cutting loads

Best suited for:

• Heavy shafts

• Larger disc components

• Energy-sector components

• Valve components

• Engineering machinery

• Applications requiring stronger material removal capability


HTC50 Series Key Specifications

Maximum Turning Diameter

HTC50Q:
• Shaft-type workpiece: approximately 500 mm
• Disc-type workpiece: approximately 550 mm

HTC50H:
• Shaft-type workpiece: approximately 500 mm
• Disc-type workpiece: approximately 550 mm

HTC50S:
• Shaft-type workpiece: approximately 500 mm
• Disc-type workpiece: approximately 630 mm


Maximum Turning Length

Available configurations include:

• 500 mm
• 1000 mm
• 1500 mm
• 2000 mm
• 2500 mm

Current manufacturer product material specifically lists HTC50 Q/H/S models in 1000, 1500, 2000 and 2500 mm turning-length classes.

Final availability of the 500 mm configuration should be confirmed for the selected Q, H or S version.


Machine Capacity

• Maximum swing over bed: approximately 650 mm

• Maximum swing over saddle: approximately 500 mm


HTC50Q Spindle Configuration

• Spindle nose: A2-8

• Spindle bore: 80 mm

• Maximum bar capacity: 65 mm

• Standard chuck: 10 inch

• Spindle speed range: approximately 50–3500 rpm

• Maximum spindle torque: approximately 344 Nm

• Main motor output: 22 / 30 kW

• X / Z rapid traverse: 20 / 20 m/min


HTC50H Spindle Configuration

• Spindle nose: A2-11

• Spindle bore: 104 mm

• Maximum bar capacity: 85 mm

• Standard chuck: 12 inch

• Spindle speed range: approximately 35–3000 rpm

• Maximum spindle torque: approximately 890 Nm

• Main motor output: 22 / 30 kW

• X / Z rapid traverse: 20 / 20 m/min


HTC50S Spindle Configuration

• Spindle nose: A2-11

• Spindle bore: 104 mm

• Maximum bar capacity: 85 mm

• Standard chuck: 12 inch

• Spindle speed range: approximately 35–2200 rpm

• Maximum spindle torque: approximately 680 Nm

• Main motor output: 22 / 30 kW

• X / Z rapid traverse: 15 / 15 m/min


Tool Turret

The HTC50 Series uses a horizontal 12-station servo turret.

• Turret capacity: 12 stations

• Tool shank size: 25 × 25 mm

The servo turret supports efficient multi-operation turning and helps reduce indexing time during repeated production cycles.


Maximum Workpiece Load

HTC50Q:

• Disc-type workpiece: approximately 300 kg

• Shaft-type workpiece: approximately 800 kg


HTC50H / HTC50S:

• Disc-type workpiece: approximately 500 kg

• Shaft-type workpiece: approximately 1300 kg

This substantial increase in workpiece capacity is one of the important reasons to move from the HTC40 platform into the HTC50 Series.


High-Accuracy Machine Platform

The HTC Q/H/S Series is designed around a combination of accuracy, efficiency and rigidity.

Key accuracy-related features include:

• High-accuracy spindle bearings

• High-accuracy leadscrews

• Precision guideway systems

• Feed-axis pre-tensioning

• Controlled assembly procedures

• Laser-interferometer verification during machine manufacture

• Optional linear scales for full closed-loop control

The manufacturer specifies imported P4 cylindrical roller bearings in the spindle system and C3-grade leadscrews in the feed system.

These features are intended to improve:

• Rotary accuracy

• Axis movement consistency

• Thermal stability

• Repeatable machining performance

• Long-term precision retention


Feed-Axis Pre-Tensioning

The X and Z feed axes use pre-tensioning and preload control during assembly.

This helps reduce the influence of thermal growth on positioning performance.

Benefits include:

• Improved feed accuracy

• Reduced thermal influence

• Better repeatability

• Stable machining during longer production cycles


High-Rigidity Machine Construction

The HTC50 Series uses high-quality cast iron for the machine body and key structural components.

The platform incorporates:

• High-rigidity machine structure

• Long-span headstock design

• High-power spindle system

• High-rigidity tool carriage

• Production-oriented slant bed construction

These features help support both stable finishing and stronger roughing operations.


Q / H / S Guideway Flexibility

The HTC50 platform is available with different guideway arrangements depending on the selected configuration and work requirement.

The manufacturer describes the HTC50Q/H/S family as providing both rolling-guide and hard-guide structural options to suit different machining conditions.

This gives the HTC50 platform flexibility across:

• Higher-speed production work

• General-purpose machining

• Stronger roughing applications

• Larger workpieces

• Different material types


Production Efficiency

The HTC50 Series is designed to reduce non-cutting time and support regular production use.

Efficiency-related features include:

• Servo turret

• High-performance spindle system

• Fast feed-axis movement

• Modular machine configuration

• Automation compatibility

• Optional workpiece measurement

• Optional tool monitoring

• Optional additional functional modules

This allows the machine to be configured for anything from general operator-loaded production to more advanced automated turning cells.


Automation and Functional Options

Depending on machine configuration, available options may include:

• Automatic loading and unloading

• Gantry automation

• Industrial robot integration

• Servo tailstock

• Steady rest

• Auxiliary spindle

• Y-axis functionality

• Tool setting systems

• Workpiece measurement

• Tool damage detection

• Linear scales

• Rear chip removal

• Oil mist collector

• Pneumatic door

Final availability depends on the selected HTC50 model and machine configuration.


Typical Applications

The HTC50 Series is well suited to:

• Automotive components

• Engineering machinery

• Hydraulic components

• Mining and industrial components

• General engineering

• Energy-sector components

• Pump components

• Motor components

• Valve components

• Shaft production

• Disc-type component production

• Medium and large batch production


Typical Workpieces

Typical HTC50 workpieces may include:

• Drive shafts

• Gear shafts

• Motor shafts

• Piston rods

• Hydraulic rods

• Cylinder barrels

• Bearing axles

• Sleeves

• Bushes

• Flanges

• Valve bodies

• Disc components

• General large rotational parts


Documented Industry Applications

The manufacturer’s HTC application material identifies several representative workpieces.


Drive Shaft

• Industry: Automotive

• Material: 45 steel

• Representative machining time: approximately 460 seconds


Piston Rod

• Industry: Engineering machinery

• Material: 45 steel

• Representative machining time: approximately 520 seconds


Cylinder Barrel

• Industry: Coal machinery

• Material: 55 steel

• Representative machining time: approximately 400 seconds

These machining times are manufacturer application examples under specified conditions and should not be treated as guaranteed cycle times for other workpieces or setups.


Why Consider the HTC50 Series?

The HTC50 Series is particularly attractive for workshops that have outgrown compact HTC40-class machines but do not require the substantially larger HTC63 or HTC80 platform.

Key reasons to consider the HTC50 Series include:

• Up to 500 mm shaft turning diameter

• Up to 630 mm disc turning diameter on S configuration

• Turning lengths up to 2500 mm

• Up to 85 mm bar capacity

• 10-inch or 12-inch chuck configurations

• Up to approximately 890 Nm spindle torque

• 22 / 30 kW spindle motor output

• 12-station servo turret

• Strong workpiece load capacity

• Q, H and S configuration choices

• Suitable for automation

• Suitable for steel, cast iron and non-ferrous machining

• Broad shaft and disc-component capability


HTC50Q vs HTC50H vs HTC50S

HTC50Q – General-Purpose

Choose the HTC50Q when:

• Broad general turning capability is required

• 65 mm bar capacity is sufficient

• Higher spindle speed is useful

• A 10-inch chuck is suitable

• General engineering and mixed production are the main applications


HTC50H – High-Efficiency

Choose the HTC50H when:

• Higher production efficiency is required

• Strong spindle torque is important

• 85 mm bar capacity is beneficial

• A 12-inch chuck is preferred

• Automotive, pump and motor production are major applications

• Higher-utilisation machining is expected


HTC50S – Heavy-Cutting

Choose the HTC50S when:

• Heavy roughing is a major requirement

• Larger disc capacity is required

• 85 mm bar capacity is needed

• Strong structural rigidity is more important than maximum rapid speed

• Heavy shafts, valves or energy-sector components are being machined


HTC50 Turning Length Selection

The HTC50 platform is available in several bed-length configurations.


HTC50 / 1000

Best suited for:

• Medium-length shafts

• General engineering components

• Piston rods

• Drive components

• Compact production installations


HTC50 / 1500

Best suited for:

• Longer shafts

• Hydraulic rods

• Engineering machinery components

• Cylinder-related work

• General production requiring additional tailstock clearance


HTC50 / 2000

Best suited for:

• Long shafts

• Larger hydraulic components

• Long engineering workpieces

• Production requiring substantial Z-axis capacity


HTC50 / 2500

The longest current standard HTC50 configuration listed in the manufacturer’s 2026 product range.

Best suited for:

• Long shaft components

• Long hydraulic rods

• Large engineering machinery components

• Applications where 2000 mm turning capacity is insufficient


HTC Series Positioning Guide

The broader HTC range is divided into different performance platforms.


HTC-Q Series – General-Purpose Turning

The HTC-Q Series is the mainstream general-purpose horizontal turning platform.

It focuses on:

• Broad application capability

• Practical productivity

• Large machining range

• Strong overall value

Best suited for:

• General engineering

• Engineering machinery

• Mixed shaft and disc production

• Workshops requiring versatile turning capability


HTC-H Series – High-Efficiency Turning

The HTC-H Series is the high-efficiency platform.

It focuses on:

• Higher production efficiency

• Higher machining accuracy

• Excellent stability

• Strong automation compatibility

Best suited for:

• Automotive components

• Pump components

• Motor components

• Higher-volume production

• Repetitive machining


HTC-S Series – Heavy-Cutting Turning

The HTC-S Series is the heavy-cutting platform.

It focuses on:

• Large spindle torque

• Strong machine rigidity

• Heavy material removal

• Larger workpieces

Best suited for:

• Automotive heavy components

• Energy-sector components

• Valves

• Engineering machinery

• Heavy shaft and disc machining


HTC-P Series – High-Precision Turning

The HTC-P Series is the high-precision platform.

It should be considered where:

• Higher machining accuracy

• Precision retention

• Thermal stability

• High-value component machining

are the main priorities.


How to Choose Between HTC40, HTC50, HTC63 and HTC80

Choose HTC40 when:

• Compact footprint is important

• Smaller shafts and disc parts dominate production

• Up to approximately 50–65 mm bar capacity is sufficient


Choose HTC50 when:

• Larger shafts and disc components are required

• Up to 85 mm bar capacity is beneficial

• Turning lengths up to 2500 mm are required

• More torque and workpiece load capacity are needed


Choose HTC63 when:

• Workpiece diameter and weight increase substantially

• Larger spindle bore and chuck capacity are required

• Heavy engineering components are common


Choose HTC80 when:

• Very large shaft and disc components are required

• Maximum rigidity and torque are primary requirements

• Large engineering, metallurgy and heavy-industry work dominates production


Standard Configuration

Typical HTC50 Series equipment includes:

• CNC control system

• Sleeve-type spindle

• Hollow hydraulic chuck cylinder

• Hydraulic chuck

• Horizontal 12-station servo turret

• Tailstock system

• Automatic lubrication

• Coolant system

• Full machine enclosure

• Work light

• Chip-management system

Control system depends on the selected Q, H or S configuration and quotation.

The existing catalogue information lists:

• GSK control as the standard Q Series control

• FANUC 0i-TF Plus for H / S catalogue configurations

Other control options should be confirmed before quotation.


Optional Equipment

Depending on selected model and application, available options may include:

• FANUC CNC control

• Siemens CNC control

• Tool setting gauge

• Linear scales

• Workpiece measurement

• Tool damage detection

• Power turret

• Y-axis module

• Auxiliary spindle

• Servo tailstock

• Steady rest

• Oil mist collector

• Rear chip removal

• Pneumatic door

• Automation package

Not every option is available on every HTC50 configuration.

Final compatibility should be confirmed before order placement.


Not the Best Fit When

The HTC50 Series may not be the best choice when:

• Very small components dominate production

• A compact 8-inch chuck machine is sufficient

• Turning diameter substantially exceeds HTC50 capacity

• Bar capacity greater than 85 mm is required

• Extreme heavy cutting requires the HTC63 or HTC80 platform

• Sub-spindle production is mandatory

• Complex milling and turning in one setup is the primary requirement

• Full turn-mill machining is required

For these applications, HTC40, HTC63, HTC80 or an HTM turn-mill machining centre may be more appropriate.


Machine Selection and Configuration

Final HTC50 configuration should be selected according to the actual workpiece and production process.

Please provide:

• Maximum workpiece diameter

• Maximum workpiece length

• Maximum workpiece weight

• Material

• Bar diameter where bar feeding is required

• Drawing where available

• Required machining operations

• Required tolerances

• Surface finish requirements

• Expected batch quantity

• Required spindle torque

• Preferred CNC control

• Chuck requirement

• Tailstock requirement

• Turret requirement

• Tooling requirement

• Steady-rest requirement

• Chip conveyor requirement

• Workpiece measurement requirement

• Tool setting requirement

• Automation requirement

• Voltage and site requirements

MachineryPLUS can assist with selecting the correct HTC50 Q, H or S configuration and turning length according to the actual component and production process.


Complete Your Machine Setup

A CNC lathe is only one part of the complete turning system.

MachineryPLUS can also assist with:

• CNC machine selection

• Turning tools

• Boring bars

• Parting and grooving tools

• Threading tools

• Drilling tools

• Tool holders

• Collets

• Chucking solutions

• Soft jaws

• Centres

• Tailstock tooling

• Steady rests

• Workholding

• Tool measurement

• Chip management

• Tool storage

• Automation

• Integrated manufacturing solutions

This allows the machine, tooling, workholding and production process to be considered as one complete manufacturing solution.


Explore More from MachineryPLUS

MachineryPLUS supplies machine tools, manufacturing solutions, cutting tools, workholding and supporting equipment for Australian manufacturing, machining and engineering businesses.

Our broader machine tool and manufacturing solution range includes:

• CNC Turning – CNC lathes, horizontal turning centres, vertical lathes, heavy-duty lathes and turn-mill machining centres.

• Machining Centres – vertical machining centres, horizontal machining centres, five-axis machining centres and drilling and tapping centres.

• Five-Axis Machining – vertical five-axis machining centres, horizontal five-axis machining centres, five-axis gantry machines and specialised five-axis machining solutions.

• Large Machining – gantry machining centres, floor-type boring and milling machines, table-type boring and milling machines and large heavy-duty machine tools.

• Precision & Specialised Machines – grinding machines, gear manufacturing machines, ultra-precision equipment and special-purpose machine tools.

• Forming & Forging Equipment – hydraulic presses, mechanical presses, forging systems, forming equipment and specialised production systems.

• Automation & Smart Manufacturing – robotic automation, gantry automation, flexible manufacturing systems, machining cells, automated production lines and digital manufacturing solutions.

• Cutting Tools – turning, milling, drilling, threading and holemaking tools for a broad range of machining applications.

• Tool Holders – BT, CAT, HSK, PSC/Capto, Morse taper, R8 and other machine tool holder systems.

• Workholding – machine vises, chucking solutions, soft jaws, centres, fixtures and CNC workholding accessories.

• Machine Tool Accessories – collets, drill chucks, pull studs, tapping systems, milling and lathe accessories and supporting workshop equipment.

• Tool Management & Storage – tooling storage, organisation and workshop solutions designed to improve productivity and tool control.

MachineryPLUS can support customers from individual machine selection through to tooling, workholding, automation and integrated manufacturing solutions.

Based in Perth, Western Australia, MachineryPLUS supports customers locally and Australia-wide with product selection, sourcing and practical manufacturing solutions.

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