Citizen Cincom D25-VII

Est. USD 200,000 - 320,000 Specs verified 2026-10-03 · cmj.citizen.co.jp Updated 2026-10-03

Image: cmj.citizen.co.jp, Citizen Machinery

Key Specifications

Max Spindle

max. 10,000 rpm

maximum machining diameter

25 mm dia.

maximum machining length guide bushing

250 mm

maximum machining length guide bushing less

2.5D

maximum drilling diameter for main spindle

12 mm dia.

maximum front tapping diameter cut tap

M10

How much does the Citizen Cincom D25-VII cost?

Estimated price range

Est.USD 200,000 - 320,000

Our best estimate for a swiss-type lathe in this class — not a quote from Citizen Machinery. Configuration moves it a long way.

Overview

The Citizen Cincom D25-VII is a 25 mm sliding-headstock lathe and the higher-tool-count type of the D25: Citizen lists 59 tools to be mounted, against 43 on the Cincom D25-VIII. Both main and back spindles run to 10,000 rpm, and the gang rotary tools reach 9,000 rpm. For parts that need a long sequence of operations without a tool being swapped between jobs, the extra positions are the reason to choose this type.

At the front, the main spindle has a 3.7/5.5 kW motor and is rated to drill 12 mm and cut-tap M10. The gang rotary tools, driven at 2.2 kW, drill 10 mm and cut-tap M8, so cross holes, hex flats and slots on 25 mm stock are within range. Turning tools are 16 mm or 19 mm square and sleeves 25.4 mm.

The machine runs in either guide-bush or guide-bushless mode. With the guide bush, the maximum machining length is 250 mm, enough for long slender shafts. Guide-bushless, it is 2.5D, which keeps short parts from wasting a long remnant.

The back end is built for real work rather than finishing touches. The back spindle takes a 25 mm chuck and up to 50 mm of protrusion, with a 2.2/3.7 kW motor; back drilling and tapping go to 12 mm and M10, and a 1.0 kW motor drives rotary tools on the back tool post. Rapids are 32 m/min on most axes and 24 m/min on Z2.

The D25-VII is a large machine for the bar size. It weighs 3,450 kg, needs a 13 kVA supply with a 7.1 kVA average, and has a 1,050 mm centre height.

Full Specifications

Parameter	Value
Maximum Machining Diameter	25 mm dia.
Maximum Machining Length Guide Bushing	250 mm
Maximum Machining Length Guide Bushing Less	2.5D
Maximum Drilling Diameter for Main Spindle	12 mm dia.
Maximum Front Tapping Diameter Cut Tap	M10
Max Spindle Speed	max. 10,000 rpm
Maximum Drilling Diameter for Rotary Tool	10 mm dia.
Maximum Tapping Diameter for Gang Rotary Tool Cut Tap	M8
Spindle Speed of The Gang Rotary Tool	max. 9,000 rpm
Maximum Chuck Diameter of Back Spindle	25 mm dia.
Maximum Protrusion Length of The Back Spindle Workpiece	50 mm
Maximum Drilling Diameter in Back Machining Process	12 mm dia.
Maximum Tapping Diameter in Back Machining Process	M10
Sub Spindle Speed	max. 10,000 rpm
Number of Tools to Be Mounted	59
Tool Size Turning Tool	16 mm Sq./19 mm Sq.
Tool Size Sleeve	25.4 mm dia.
Rapid Feed Rate Z2 Axis	24 m/min
Rapid Feed Rate Axes Other Than The Above	32 m/min
Motors for Spindle Drive	3.7/5.5 kW
Motors for Tool Spindle Drive	2.2 kW
Motors for Back Spindle Drive	2.2/3.7 kW
Motors for Driving Rotary Tools on The Back Tool Post	1.0 kW
Power Requirement	13 kVA
Load Operation Average Power	7.1 kVA
Center Height	1,050 mm
Machine Weight	3,450 kg

Specifications sourced from cmj.citizen.co.jp — verified 2026-10-03

Strengths & Limitations

Strengths

59 tools to be mounted, 16 more than the Cincom D25-VIII
Main and back spindles both run to 10,000 rpm
Gang rotary tools at up to 9,000 rpm with 10 mm drilling and M8 cut tapping
Back machining to 12 mm drilling and M10 tapping with 50 mm protrusion
250 mm stroke with the guide bush, or guide-bushless at 2.5D

Limitations

Weighs 3,450 kg and needs a 13 kVA supply, much more than a 12 mm or 16 mm machine
Bar capacity ends at 25 mm
Guide-bushless machining length is limited to 2.5 times the diameter
The Z2 axis rapids at 24 m/min, slower than the 32 m/min of the other axes

Best For

Complex 25 mm parts needing many tools in one setup High-mix work where tools stay loaded between jobs Parts with heavy back-end drilling and M10 tapping Long shafts using the 250 mm guide-bush stroke

Frequently Asked Questions

01 How does the D25-VII differ from the D25-VIII?

In Citizen's table the only difference is the number of tools that can be mounted: 59 on the D25-VII and 43 on the Cincom D25-VIII. Bar capacity, spindle speeds, motors, rapids, power requirement and the 3,450 kg weight are listed the same for both.

02 What size of hole can the D25-VII drill and tap?

The main spindle drills to 12 mm and cut-taps M10 at the front. The gang rotary tools drill to 10 mm and cut-tap M8. On the back spindle, drilling goes to 12 mm and tapping to M10, with up to 50 mm of the part protruding from the 25 mm chuck.

03 Can the D25-VII run guide-bushless?

Yes. The maximum machining length is listed as 250 mm with the guide bush and 2.5D without it, meaning two and a half times the bar diameter. Guide-bushless running suits short parts and cuts the bar remnant left at the end of each bar.

04 What does the D25-VII need for power and floor space?

Citizen lists a 13 kVA power requirement with an average of 7.1 kVA during load operation. The machine weighs 3,450 kg and has a centre height of 1,050 mm. The table on this page does not give floor dimensions, so check the layout drawing before planning the bar feeder position.