Tornos MultiDECO 20/8

$800,000 - $1,400,000 Updated 2026-03-16

Key Specifications

max bar capacity

20 mm (0.787 in)

number of spindles

spindle speed range

100 – 8,000 RPM (per spindle, independently programmable)

spindle power per station

3.7 kW (5 HP) per spindle

driven tools

Yes, at each spindle position

driven tool speed

Up to 6,000 RPM

Overview

The Tornos MultiDECO 20/8 is an 8-spindle CNC multi-spindle automatic lathe with 20mm bar capacity, combining the high-volume throughput of multi-spindle architecture with the CNC flexibility that modern Swiss precision part production demands. As a multi-spindle machine, the MultiDECO 20/8 simultaneously machines eight separate parts at eight indexed spindle positions, each performing a different operation in a synchronized cycle. When the drum indexes, each part advances one station, until the fully machined part is cut off at the last station. This architecture delivers throughput rates eight times higher than a single-spindle Swiss automatic running the same cycle time—making the MultiDECO 20/8 the production workhorse for very high-volume precision parts under 20mm diameter.

Tornos designed the MultiDECO 20/8 as a CNC-controlled evolution of the traditional multi-spindle automatic. Unlike cam-driven multi-spindle machines, the MultiDECO uses CNC-controlled servo axes at each spindle station, enabling rapid changeover to new part programs without cam changes and allowing complex part geometries that cam-driven machines cannot execute. Each spindle station has independent CNC-controlled tool slides, and driven tools are available at each position for milling, drilling, and threading—turning the MultiDECO into a complete machining system rather than a pure turning machine.

Spindle speed on the MultiDECO 20/8 is programmable per spindle position, allowing each station to run at the optimal speed for its specific operation. This is a significant capability advantage over cam-driven multi-spindle machines, where all spindles run at the same speed. Independent per-station speeds enable the roughing stations to run at aggressive speeds while finishing stations run at the optimal finishing speed, and drilling/milling stations run at driven tool speeds appropriate for the feature being produced.

For producers of automotive precision components, connector contacts, medical fasteners, and other high-volume small precision parts, the MultiDECO 20/8 delivers a cost-per-part that single-spindle Swiss machines cannot match. Eight parts per cycle at cycle times often under 15 seconds produces 1,500–3,000+ parts per hour depending on part complexity. This throughput economy is the fundamental justification for multi-spindle architecture, and the MultiDECO delivers it with CNC flexibility that legacy cam multi-spindles cannot provide.

Full Specifications

Parameter	Value
Max Bar Capacity	20 mm (0.787 in)
Number Of Spindles	8
Spindle Speed Range	100 – 8,000 RPM (per spindle, independently programmable)
Spindle Power Per Station	3.7 kW (5 HP) per spindle
Driven Tools	Yes, at each spindle position
Driven Tool Speed	Up to 6,000 RPM
Back Working Unit	Yes, pick-off spindle for back operations
Number Of Axes	CNC servo at each of 8 stations
Tool Positions Per Station	Up to 4 cross slides + 1 longitudinal per station
Max Machining Length	80 mm (3.15 in)
Guide Bushing	Yes, per spindle
CNC Control	Tornos/Fanuc multi-channel CNC
Machine Dimensions	Approx. 4,500 x 2,200 x 2,100 mm
Machine Weight	7200 (KGS)
Model	MULTIDECO 20/8Discontinued Model
Brand	TORNOS
Type	CNC Lathes
Power201 Hpmax Rpm5000 Rpmcontrolcnc	Dimensions5880 x 1400 x 1950 mmWeight7200 (KGS)
Power	20.1 hp
Max Rpm	5,000 RPM
Cnc Control	CNC (TORNOS PNC DECO)
Dimensions5880 X 1400 X 1950 Mm	Weight7200 (KGS)
Dimensions	5880 x 1400 x 1950 mm
Tornos Technologies Italia Srlvia Cesare Pavese 21opera Lombardia 20090italy	Tornos IndiaManas, Plot No. R-28, Sudarshan Nagar,M.I.D.C. Residential ZoneDombivli, Maharashtra 421 203India

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

Strengths & Limitations

Strengths

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Limitations

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Best For

Automotive precision component manufacturers producing fuel injection components, transmission fittings, and sensor housings in volumes of millions of parts per year Electrical connector and contact manufacturers producing connector pins, socket contacts, and termination components where throughput economics dominate total cost Medical fastener and implant screw manufacturers producing bone screws, set screws, and locking fasteners in titanium and stainless steel at production volumes justifying multi-spindle investment Fluid power component producers manufacturing valve spools, orifice inserts, and pressure fitting components in high volume from bar stock

Frequently Asked Questions

01 How does a multi-spindle machine like the MultiDECO 20/8 work?

The MultiDECO 20/8 has 8 spindle positions arranged in a rotating drum. Each spindle holds a bar of raw material. At each machine cycle, all 8 spindles simultaneously perform different machining operations—station 1 might rough turn a diameter, station 2 finish turns it, station 3 drills a hole, and so on through all 8 stations. When the cycle completes, the drum indexes, advancing each part to the next station. A finished part is cut off at the last station every cycle.

02 What is the production rate of the Tornos MultiDECO 20/8?

Production rate depends on the cycle time set by the slowest station (the bottleneck). For simple parts with cycle times of 6–10 seconds per index, production rates of 360–600 parts per minute (or 21,600–36,000 per hour) are theoretically possible. For moderately complex parts with 15–20 second cycles, 180–240 parts per minute is more realistic. Even at 10 seconds per cycle, the MultiDECO produces 8 parts per 10-second cycle—2,880 parts per hour.

03 How does the MultiDECO 20/8 compare to cam-driven multi-spindle automatics?

The MultiDECO 20/8 uses CNC servo control at each station rather than mechanical cams. This provides faster changeover, per-station programmable spindle speeds, complex driven tool sequences, and the ability to machine geometries that cam-driven machines cannot produce. Cam multi-spindles run faster at maximum speed for the simplest parts but cannot match the MultiDECO's flexibility or driven tool capability.

04 What size parts is the MultiDECO 20/8 designed for?

The MultiDECO 20/8 handles bar stock up to 20mm in diameter with a maximum machining length of approximately 80mm. It targets the precision small parts market: connector pins, automotive fuel system components, medical fasteners, hydraulic fittings, and similar parts where diameters under 20mm and volumes in the millions per year make multi-spindle economics compelling.

05 What does a Tornos MultiDECO 20/8 cost?

New Tornos MultiDECO 20/8 machines are typically priced between $800,000 and $1,400,000 depending on configuration, driven tool count at each station, and optional equipment. Used multi-spindle machines are occasionally available at $300,000–$700,000 depending on age, condition, and tooling. The capital investment requires clear volume and part family justification.