OKK Corporation Vertical Machining Centers (VMC)

OKK VM53R

Est. $180,000 - $280,000 Possible older model Specs verified 2026-10-03 · methodsmachine.com Updated 2026-10-03

This model was not found in OKK Corporation's current lineup when we checked on 2026-10-03 . It may be a superseded or older model; the specifications below are as we last recorded them.

OKK VM53R Vertical Machining Centers (VMC)

Key Specifications

X Travel

41.3 in (1,050 mm)

Y Travel

20.8 in (530 mm)

Z Travel

20.1 in (510 mm)

Max Spindle

8,000 rpm (Option 12,000 rpm)

Spindle Taper

CAT50 (Option CAT40)

Tool Capacity

30 (Option 40)

How much does the OKK VM53R cost?

Estimated price range

Est.$180,000 - $280,000

Our best estimate for a vertical machining centers (vmc) in this class — not a quote from OKK Corporation. Configuration moves it a long way.

Overview

The OKK VM53R is a 50-taper vertical machining center in a mid-size frame: 41.3 in (1,050 mm) of X travel, 20.8 in (530 mm) of Y and 20.1 in (510 mm) of Z, with a CAT50 spindle rated 25/20 hp at 8,000 rpm. OKK's current lineup does not include the VM53R, so this page serves mainly as a reference for an older machine.

A CAT50 spindle on travels of this size is the reason to look at it. The tool limits follow from the taper: the listed figures allow tools up to 44 lb (20 kg), 15.0 in (380 mm) long and Ø4.06 in (103 mm) in diameter, or Ø7.87 in (200 mm) when the adjacent pots are left empty. That covers large face mills and long boring bars on a machine that weighs 17,600 lb (8,000 kg). A CAT40 spindle, a 40 hp motor and a 12,000 rpm top speed are all listed as options, so two machines with this badge can be quite different.

The table carries 1,764 lb (800 kg), and the distance from spindle nose to table runs from 5.9 in to 26.0 in (150 mm to 660 mm), which sets the tallest combination of fixture, part and tool. Maximum cutting feed is 787 in/min (20 m/min). The magazine holds 30 tools with a 40-tool option, and tool-to-tool time is 2.0 sec, with the changer speed adjustable for heavy tools. Repeatability is listed as +/-2.0 um.

Full Specifications

Parameter	Value
X-Axis Travel	41.3 in (1,050 mm)
Y-Axis Travel	20.8 in (530 mm)
Z-Axis Travel	20.1 in (510 mm)
Max Table Load	1,764 lb (800 kg)
Spindle Taper	CAT50 (Option CAT40)
Repeatability	+/-2.0 um
Tool Capacity	30 (Option 40)
CNC Control	FANUC F31i-B Plus
Machine Weight	17,600 lb (8,000 kg)
Power	25 hp
RPM	8,000 RPM
ATC	30
Spindle Nose to Table	5.9 in – 26.0 in (150 mm – 660 mm)
Max Cutting Feedrate	787 in/min (20 m/min)
Spindle Motor Power	25/20 hp (Option 40HP)
Max Spindle Speed	8,000 rpm (Option 12,000 rpm)
Max Tool Weight	44 lb (20 kg)
Max Tool Length	15.0 in (380 mm)
Max Tool Diameter (full magazine)	Ø4.06 in (103 mm) / Ø7.87 in (200 mm) without tool in adjacent pots
Tool to Tool Time	2.0 sec (Speed is changeable for heavy-weight tools)

Specifications sourced from methodsmachine.com (authorised dealer / distributor, not the manufacturer's own site) — verified 2026-10-03

Strengths & Limitations

Strengths

CAT50 spindle rated 25/20 hp on a machine with 41.3 in (1,050 mm) of X travel
Takes tools up to 44 lb (20 kg) and 15.0 in (380 mm) long, and Ø7.87 in (200 mm) with adjacent pots empty
2.0 sec tool-to-tool time, with changer speed adjustable for heavy tools
Spindle nose to table distance of 5.9 in to 26.0 in (150 mm to 660 mm)
Listed options include a 40 hp spindle motor and 12,000 rpm

Limitations

Standard top speed is 8,000 rpm; 12,000 rpm is an option
Table load is 1,764 lb (800 kg), fixture included, which caps the size of steel workpieces
With a full magazine, tool diameter is limited to Ø4.06 in (103 mm)
Not in OKK's current lineup, and CAT40, 40 hp and 12,000 rpm variants exist, so confirm the build of any machine offered

Best For

Heavy face milling and boring with CAT50 tooling Mould bases and steel plates within 41.3 x 20.8 in (1,050 x 530 mm) Large-diameter cutters up to Ø7.87 in (200 mm) with adjacent pots empty Parts and fixtures up to 1,764 lb (800 kg)

Frequently Asked Questions

01 Is the VM53R a current OKK model?

No. OKK's current lineup does not include the VM53R, so it is best treated as an older model. The listed figures, such as 41.3 in (1,050 mm) of X travel and a CAT50 spindle at 8,000 rpm, are useful for assessing a second-hand machine but should be confirmed against its own documents.

02 What spindle options were listed for the VM53R?

The standard spindle is CAT50 with 25/20 hp and 8,000 rpm. The listed options are a CAT40 taper, a 40 hp motor and a 12,000 rpm top speed. The figures do not say which options can be combined, so check the spindle nameplate and the build sheet.

03 What is the largest tool the VM53R can change?

Up to 44 lb (20 kg) in weight and 15.0 in (380 mm) in length. Diameter is limited to Ø4.06 in (103 mm) with tools in the neighbouring pots, or Ø7.87 in (200 mm) with the adjacent pots empty. Tool-to-tool time is 2.0 sec, and the changer speed can be altered for heavy tools.

04 How tall a setup fits under the VM53R spindle?

The spindle nose to table distance ranges from 5.9 in to 26.0 in (150 mm to 660 mm) over 20.1 in (510 mm) of Z travel. Fixture height, part height and tool length together must fit within the upper figure, and the table load is 1,764 lb (800 kg).