Samputensili SC 1000

$1,000,000 - $1,600,000 Updated 2026-03-17

Key Specifications

max workpiece outside diameter

1,000 mm (39.4 in)

max module

16 mm

max face width

800 mm (31.5 in)

max helix angle

±45 degrees

hob spindle

Direct-drive

workpiece spindle

Direct-drive, vertical orientation

Overview

The Samputensili SC 1000 is a large-capacity CNC gear hobbing machine for external cylindrical gears up to 1,000 mm (39.4 in) in diameter. Samputensili's SC series is the company's main CNC gear hobbing line, with the SC 1000 positioned at the upper end for industrial gearbox gears, wind turbine accessory gears, and large power transmission components that require hobbing capability beyond the range of automotive-scale machines.

The SC 1000 uses the continuous generating hobbing process with a vertical workpiece spindle. Hobbing is the most productive soft gear cutting process for external cylindrical gears, generating the involute profile through the synchronized rotation of the hob and workpiece in a continuous gear-generating motion. At 1,000 mm outside diameter and module 16 capacity, the SC 1000 covers the dominant range of large industrial gears encountered in multi-stage reducers, construction equipment final drives, mining equipment gearboxes, and wind turbine stage gears.

Samputensili equips the SC 1000 with direct-drive hob and workpiece spindles — an architecture that eliminates the gearbox, belt, or worm drive between the motor and spindle that older machine designs relied on. Direct-drive provides higher stiffness, reduced compliance, and improved accuracy at high cutting speeds, particularly important when hobbing coarse-pitch gears in alloy steel where cutting forces are high. Motorized hob shift distributes wear across the full hob length, extending the life of the large-bore hobs required for module 16 work.

The SC 1000 is controlled by a Siemens Sinumerik CNC running Samputensili's gear-specific hobbing software, which manages the gear generating synchronization, hob shift cycles, and lead corrections from gear-specific input parameters. On-machine probing capability provides closed-loop feedback for lead correction during production runs. ChamferCut-equivalent chamfering capability is available on the SC 1000 as an option for gears where integrated chamfering within the hobbing machine is practical.

New SC 1000 machines are typically priced in the $1,000,000–$1,600,000 range. Samputensili positions the SC 1000 in the large industrial gear hobbing market where Liebherr, Gleason, and Pfauter-heritage machines are primary competitors, offering Italian engineering at pricing competitive with German alternatives.

Full Specifications

Parameter	Value
Max Workpiece Outside Diameter	1,000 mm (39.4 in)
Max Module	16 mm
Max Face Width	800 mm (31.5 in)
Max Helix Angle	±45 degrees
Hob Spindle	Direct-drive
Workpiece Spindle	Direct-drive, vertical orientation
Hob Shift	Motorized automatic hob shift
CNC Control	Siemens Sinumerik with Samputensili hobbing software
Max Workpiece Weight	Approx. 5,000 kg
Machine Weight	Approx. 25,000 kg (55,100 lb)
Manufacturer	Emag
Model	VSC 250
Power Requirement	60 kW
Grinding Length	1,016 mm

Specifications sourced from machinio.com — verified 2026-03-28

Strengths & Limitations

Strengths

1,000 mm workpiece diameter and module 16 capacity cover the full range of large industrial gearbox and wind turbine stage gears in a single machine platform
Direct-drive hob and workpiece spindles eliminate drive train compliance, improving accuracy and allowing higher cutting speeds than gear-driven or belt-driven alternatives
Motorized hob shift extends large-bore hob life automatically by distributing wear evenly across the full hob length
Vertical workpiece spindle simplifies crane loading of large, heavy gear blanks without specialized tilting fixtures
Samputensili gear-specific software manages generating synchronization and lead corrections from gear-specific inputs, reducing setup complexity

Limitations

Machine cost and footprint require high-value production volume to justify versus smaller capacity hobbing machines for shops whose typical work falls below 500 mm
Module 16 tooling (large-bore hobs) is expensive and requires careful selection of hob design, coating, and cutting parameters to achieve economic tool life at coarse pitch
Samputensili has lower global market share than Liebherr in large industrial gear hobbing, which may affect service response times in some regions

Best For

Large industrial gearbox manufacturers producing helical and spur gears for multi-stage reducers and mining equipment at module 10–16 Wind turbine gear stage manufacturers requiring 600–1,000 mm OD hobbing capability for accessory and intermediate stage gears Construction equipment final drive gear producers running large campaigns on alloy steel ring and sun gears Industrial gear job shops serving heavy industry clients where Italian-built machines are established in the regional market

Frequently Asked Questions

01 How does the SC 1000 compare to Liebherr's LC 500 for large gear hobbing?

The SC 1000 handles significantly larger workpieces (1,000 mm vs 500 mm OD) and coarser pitch (module 16 vs module 12), making it suitable for a different tier of industrial gears. The LC 500 covers mid-range industrial gears while the SC 1000 addresses the large gear market. Both use direct-drive spindles and Sinumerik CNC with gear-specific software.

02 What is the hob shift function and why is it important on a large machine?

Hob shift moves the hob axially across its length during or between cuts to distribute wear across the full cutting edge rather than concentrating wear at one axial position. On a large machine running module 16, large-bore hobs are very expensive to regrind or replace, so maximizing hob life through automated shift is economically significant.

03 Can the SC 1000 hob internal gears?

Gear hobbing is primarily suited for external cylindrical gears. Internal gears are more efficiently cut by gear shaping or gear skiving, which do not have the interference limitations that hobbing faces at small inside diameters. The SC 1000 is therefore positioned for external gear production.

04 What bar feeder or automation systems are compatible with the SC 1000?

The SC 1000 is designed for large gear blank workpieces that are fixture-loaded, not bar-fed. Automation for the SC 1000 involves integrated gantry loaders or overhead crane loading systems coordinated with the machine control for workpiece handling in production applications.

05 What hobbing speeds are achievable on the SC 1000 at module 16?

Cutting speeds at module 16 in alloy steel (case-hardening grades) are typically 80–150 m/min with PM-HSS hobs and 150–250 m/min with carbide hobs. Feed rates depend on module, number of passes, and quality requirements. Actual cycle times depend on gear geometry, material, and quality specification.