OKK HM-800S

Est. $800,000 - $1,100,000 Possible older model Updated 2026-10-03

This model was not found in OKK'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 It may be a superseded or older model; the specifications below are as we last recorded them.

Key Specifications

X Travel

1,000 mm (39.4 in)

Y Travel

900 mm (35.4 in)

Z Travel

950 mm (37.4 in)

Max Spindle

6,000 RPM (8,000 RPM optional)

Spindle Taper

BT 50 / HSK-A100

Rapid Traverse

50 m/min (X/Y/Z)

How much does the OKK HM-800S cost?

Estimated price range

Est.$800,000 - $1,100,000

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

Overview

Torque is the headline of the OKK HM-800S in the listed figures: 600 Nm peak from a 37 kW (50 hp) spindle that tops out at 6,000 RPM, on 800 x 800 mm (31.5 x 31.5 in) pallets. It is a horizontal machining center for heavy cuts in iron and steel. OKK's current lineup does not show a model under this name, so read this page as a guide to an older machine and confirm the listed figures against the machine itself.

Travels are 1,000 mm (39.4 in) in X, 900 mm (35.4 in) in Y and 950 mm (37.4 in) in Z, and each pallet is listed for 1,500 kg (3,307 lb). The spindle interface is BT 50 or HSK-A100. An 8,000 RPM spindle is listed as optional, which still leaves this a low-speed machine: small cutters in aluminium are not what it is built around. Through-spindle coolant at 70 bar is listed as standard, a help for deep drilling and for boring bars that need chips flushed out of the bore.

The B axis indexes in 1° increments on a Hirth coupling. That gives a rigid lock for heavy cuts but no positions between whole degrees and no rotary contouring. The magazine holds 60 tools as standard, with 90 or 120 optional. Tool change is listed at 5.0 sec tool-to-tool and pallet change at 17 sec, with rapids of 50 m/min on X, Y and Z over linear roller guideways. At roughly 32,000 kg (70,548 lb), installation needs a foundation plan.

Full Specifications

Parameter	Value
B Axis Indexing	1° increments (Hirth coupling)
Spindle Motor Power	37 kW (50 hp)
Spindle Torque	600 Nm peak
Rapid Traverse Rate	50 m/min (X/Y/Z)
Pallet Size	800 x 800 mm (31.5 x 31.5 in)
X-Axis Travel	1,000 mm (39.4 in)
Y-Axis Travel	900 mm (35.4 in)
Z-Axis Travel	950 mm (37.4 in)
Max Workpiece Weight	1,500 kg (3,307 lb) per pallet
Max Spindle Speed	6,000 RPM (8,000 RPM optional)
Spindle Taper	BT 50 / HSK-A100
Feed Rate Max	20,000 mm/min
Tool Changer Capacity	60 tools standard (90 / 120 optional)
Tool Change Time	5.0 sec (tool-to-tool)
Pallet Change Time	17 sec
Positioning Accuracy	±0.002 mm
Repeatability	±0.001 mm
Guideway Type	Linear roller guideways (X/Y/Z)
Through Spindle Coolant	70 bar standard
CNC Control	Fanuc 31i-B5 (Siemens 840D sl optional)
Machine Weight	32,000 kg (70,548 lb) approx.

Specifications compiled from manufacturer literature and industry references. Not independently verified against a published spec sheet — confirm with the manufacturer or an authorised dealer before making a purchasing decision.

Strengths & Limitations

Strengths

Listed 600 Nm peak torque from a 37 kW (50 hp) spindle on BT 50 or HSK-A100
Through-spindle coolant at 70 bar listed as standard
800 x 800 mm (31.5 x 31.5 in) pallets, each listed for 1,500 kg (3,307 lb)
Hirth-coupled B axis locks solidly at each 1° position for heavy cuts
60-tool magazine as standard, with 90 or 120 tools optional

Limitations

Standard spindle tops out at 6,000 RPM, and the optional one at 8,000 RPM
B axis indexes only in 1° increments, so no intermediate angles and no rotary contouring
Not in OKK's current lineup; confirm the listed figures on the individual machine
Listed weight of about 32,000 kg (70,548 lb) demands foundation and rigging planning

Best For

Heavy milling and boring of cast iron and steel with 600 Nm of spindle torque Deep-hole drilling with 70 bar through-spindle coolant Tombstone or large single-part work on 800 x 800 mm (31.5 x 31.5 in) pallets Parts up to 1,500 kg (3,307 lb) per pallet with fixture

Frequently Asked Questions

01 Is the HM-800S still in OKK's range?

OKK's current lineup does not show a model called HM-800S, so it is best regarded as an older machine. The listed figures on this page, such as the 800 x 800 mm (31.5 x 31.5 in) pallet and 600 Nm peak torque, should be confirmed from the machine's own documentation before a purchase.

02 What spindle does the HM-800S have?

The listed figures give 37 kW (50 hp) and 600 Nm peak, with a top speed of 6,000 RPM and an 8,000 RPM spindle as an option. The tool interface is BT 50 or HSK-A100. Through-spindle coolant at 70 bar is listed as standard.

03 What are the travels and pallet capacity of the HM-800S?

X is 1,000 mm (39.4 in), Y is 900 mm (35.4 in) and Z is 950 mm (37.4 in). The pallets are 800 x 800 mm (31.5 x 31.5 in) and each is listed for a maximum workpiece weight of 1,500 kg (3,307 lb). Pallet change time is listed at 17 sec.

04 Does the HM-800S have a full fourth axis?

No, not in the listed figures. The B axis indexes in 1° increments on a Hirth coupling. That suits face-by-face machining and heavy cuts, but it cannot stop between whole degrees or rotate while cutting.