TOS Varnsdorf W 100 A

$400,000 - $700,000 Updated 2026-03-17

Key Specifications

X Travel

1,600 mm (63 in)

Y Travel

1,400 mm (55.1 in)

Z Travel

800 mm (31.5 in)

Spindle Taper

ISO 50 / SK50

Table Size

1,250 mm × 1,100 mm (49.2 in × 43.3 in)

Rapid Traverse

6 m/min X, Y, Z; 4 m/min W

Overview

The TOS Varnsdorf W 100 A is a CNC table-type horizontal boring and milling machine with a 100 mm (3.94 in) diameter boring spindle, produced by TOS Varnsdorf — the Czech Republic's oldest and most established builder of large boring equipment, with a manufacturing history stretching back to 1903 in the northern Bohemia town of Varnsdorf. The W 100 A is the compact table-type model in TOS Varnsdorf's W-series range, designed for precision multi-face machining of medium-weight workpieces in the general engineering, toolmaking, mold, and energy sectors.

The W 100 A operates on a fixed-column, traveling-table layout: the rotary CNC worktable traverses in the X-axis while the spindle head moves vertically in Y. A CNC W-axis quill with 500 mm (19.7 in) of stroke extends axially beyond the spindle nose for deep boring without full column repositioning. The rotary B-axis table provides 0.001-degree positioning resolution for precision multi-face and angular machining. Standard spindle speed range is 10–2,500 RPM driven by a 22 kW (29.5 hp) main motor, with spindle taper ISO 50 / SK50 and a facing slide attachment available for large-diameter facing operations.

TOS Varnsdorf supplies the W 100 A with Siemens Sinumerik 840D sl as standard, with Fanuc 30i-B available as an alternative. The machine features hardened and ground box guideways on all linear axes with preloaded ball screws, providing positioning accuracy of ±0.008 mm and repeatability of ±0.004 mm across the full work envelope. A cast iron Meehanite-equivalent bed and column construction ensures long-term geometric stability. Standard equipment includes an enclosed work area with chip conveyor, flood coolant system, and a CNC W-axis digital readout integrated into the main control.

The W 100 A serves as the entry point to TOS Varnsdorf's table-type boring range — above the W 100 A in capacity sit the W 130 and WRD 130 with larger spindle diameters and heavier table loads. The W 100 A is exported to engineering markets across Europe, Asia, and North America.

Full Specifications

Parameter	Value
Spindle Diameter	100 mm (3.94 in)
Spindle Speed Range	10 - 2,500 RPM
Spindle Motor Power	22 kW (29.5 hp)
Spindle Taper	ISO 50 / SK50
Table Size	1,250 mm × 1,100 mm (49.2 in × 43.3 in)
Table Load Capacity	6,300 kg (13,889 lb)
X-Axis Travel	1,600 mm (63 in)
Y-Axis Travel	1,400 mm (55.1 in)
Z-Axis Travel	800 mm (31.5 in)
Quill Stroke W	500 mm (19.7 in)
B Axis Resolution	0.001 degrees
Positioning Accuracy	±0.008 mm
Repeatability	±0.004 mm
Rapid Traverse Rate	6 m/min X, Y, Z; 4 m/min W
CNC Control	Siemens Sinumerik 840D sl (Fanuc 30i-B optional)
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Modelw100abrandtos Varnsdorftypehorizontal Table Type Boring Millscontact Sales Rep	Contact Sales Rep.
Modelw100abrandtos Varnsdorftypehorizontal Table Type Boring Mills	Contact Sales Rep.
Model	W100A
Brand	TOS VARNSDORF
Type	Horizontal Table Type Boring Mills
Spindle Size4x Horiz Tvl Of Table63y Vert Tvl Of Head44power15 Hp	RPM1,120 RPMTable-W49.2"Table-L49.2"Spindle Tvl.35.43"
Spindle Size	4"
X Horiz Tvl Of Table	63"
Y Vert Tvl Of Head	44"
Power	15 hp
Rpm	1,120 RPM
Table W	49.2"
Table L	49.2"
Spindle Tvl	35.43"
Looking To Purchase A New Tos Varnsdorf W100a	Contact Sales Rep.
Listings	(12)
Boring Mills Horizontal Table Type	8 photos
8 Photos	Video
6 Photos	Video
12 Photos	Year: 2025
9 Photos	Year: 2023
13 Photos	Year: 1988
4 Photos	Year: 1981
7 Photos	Year: 1990
Canamera Machine Tools Inc204 1440 52 Street Necalgary Alberta T2a4tbcanada	Danha's International Technology Ltd.1706 Hampton DriveCoquitlam, British Columbia V3E 3C9Canada
Benson Machines Pty Ltd348 Chisholm Roadauburn New South Wales 2144australia	P & L Machine Tools Pty. Ltd.32 Culverlands StreetHeidelberg West, Victoria 3081Australia

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

Strengths & Limitations

Strengths

100 mm spindle on a rigid table-type platform delivers excellent boring and milling performance for medium-weight workpieces — gearbox housings, pump bodies, and mold bases — at a lower price point than larger 130 mm spindle machines
500 mm W-axis quill stroke reaches internal features deep inside castings without repositioning the column, covering typical production boring requirements for medium-depth through-bores and counterbores
CNC rotary B-axis with 0.001-degree resolution enables precise multi-face and angular feature machining in a single setup, reducing fixture counts and improving inter-feature positional accuracy
TOS Varnsdorf's over-120-year manufacturing heritage in boring machines means a robust spare parts supply chain and experienced applications engineers familiar with diverse workpiece types
Dual control option (Sinumerik 840D sl or Fanuc 30i-B) allows shops to standardize on their existing control infrastructure

Limitations

6,300 kg maximum table load is sufficient for medium workpieces but excludes very large or extremely heavy castings — a 130 mm or floor-type machine is required for loads above this threshold
2,500 RPM maximum spindle speed is not competitive with horizontal machining centers for productive aluminum finishing — the W 100 A is best suited to steel, cast iron, and moderate-speed operations
Relatively slow rapid traverse rates (6 m/min) compared to modern HMCs mean air-cutting times are longer — a consideration when cycle time includes substantial non-cutting axis movement

Best For

Job shops and general engineering manufacturers machining medium-weight gearbox housings, pump bodies, compressor cases, and structural castings requiring precision multi-face boring and facing Mold and die makers requiring precision boring and facing of mold bases, press tool frames, and die shoe assemblies in the medium-size range Energy and fluid power manufacturers machining valve bodies, compressor valve plates, and hydraulic manifold castings with multiple precision bore features on several faces Defense and industrial equipment subcontractors requiring precision multi-face boring capability on medium-weight components without the capital cost of a larger 130 mm spindle machine

Frequently Asked Questions

01 What is the difference between the TOS Varnsdorf W 100 A and the larger WRD 130?

The W 100 A has a 100 mm spindle diameter and a 6,300 kg table load capacity, targeting medium-weight workpieces. The WRD 130 has a 130 mm spindle, a 10,000 kg table load, and larger table and travel dimensions — it handles heavier and larger workpieces that exceed the W 100 A's capacity. The W 100 A is the more economical entry point for shops whose parts consistently fall within 6,300 kg and medium work envelope dimensions. The WRD 130 is required for heavier production demands.

02 What tooling system does the W 100 A use?

The W 100 A uses ISO 50 (also called SK50 or BT50 equivalent in metric taper dimension) as its primary spindle taper. ISO 50 boring heads, facing slides, shell mills, and modular boring tool systems from Walter, Sandvik Coromant, Kennametal, and others are compatible. For the W-axis quill boring operations, standard 50 mm shank boring bars and modular tooling systems attach directly to the quill. The facing slide attachment accepts standard facing tool inserts on a 'T' slot mounting system.

03 Can the W 100 A perform simultaneous contouring (interpolation) during milling?

Yes. The Sinumerik 840D sl or Fanuc 30i-B controls provide full multi-axis simultaneous linear interpolation for contour milling on the W 100 A. The machine can interpolate X, Y, Z, and W axes simultaneously for complex milling cycles. The B-axis (rotary table) can be used for positioning between faces but does not typically interpolate simultaneously with the linear axes unless the machine is configured for 5-axis operation with an optional angular milling head attachment.

04 Is the W 100 A available with a facing slide for large-diameter facing?

Yes. TOS Varnsdorf offers a facing slide attachment for the W 100 A spindle that enables large-diameter facing operations — facing flanges, bores, and annular surfaces — with radial tool feed from the slide. The facing slide mounts on the spindle nose and is CNC-driven from the Sinumerik 840D sl control, enabling programmed radial pass cuts for face milling and boring operations that exceed the diameter capability of standard face mills.

05 What industries most commonly use the TOS Varnsdorf W 100 A?

The W 100 A's primary markets are general engineering and contract machining, mold and die making, fluid power and valve manufacturing, and energy equipment. In Central Europe — particularly Czech Republic, Slovakia, Poland, and Germany — TOS Varnsdorf boring machines are common in medium-to-heavy engineering shops. Export markets include Turkey, India, China, and North America, where the W 100 A serves contract manufacturers and industrial equipment producers requiring multi-face precision boring capability.