STM S Series – 40 & 50 Taper Vertical Machining Centers

STM 40 and 50 taper vertical machining centers give job shops, contract manufacturers, and production machining facilities an affordable CNC solution for everyday 3-axis milling, drilling, tapping, and general metal cutting applications. Available in 11 models, the STM lineup provides a practical range of travels, table sizes, spindle configurations, and motor horsepower options for shops that need reliable vertical machining capacity at a highly competitive price point.

Absolute Machine Tools offers STM vertical machining centers throughout the United States through its direct sales team and distributor network. These machines are built for manufacturers that need affordable CNC equipment without overcomplicating the buying decision. With CAT 40 and CAT 50 spindle options, Fanuc 0i-MF Plus CNC control, 30-tool automatic tool changers, and X-axis travels ranging from 25.2″ to 78.7″, STM VMCs provide the basic capacity and machining capability many shops need for high-volume job shop work, production components, fixtures, plates, and general machining applications.

Just as important, STM machines are supported by Absolute’s veteran service and applications engineering team, along with more than $10 million in U.S.-based parts inventory, including spindles and other critical machine components. For busy shops where uptime matters, Absolute provides the support infrastructure needed to keep machines cutting and production moving.

Key Features of STM Vertical Machining Centers

  • 11 available 40- and 50-taper vertical machining center models
  • CAT 40 and CAT 50 spindle configurations
  • 12,000 RPM direct-drive spindle on CAT 40 models
  • 6,000 RPM belt-driven spindle on CAT 50 models
  • Fanuc 0i-MF Plus CNC control
  • 30-tool automatic tool changer
  • X-axis travels from 25.2″ to 78.7″
  • Y-axis travels from 17.7″ to 35.4″
  • Z-axis travels from 19.7″ to 33.5″
  • Table sizes from 31.5″ x 17.7″ to 86.6″ x 35.4″
  • Spindle motor horsepower from 20 HP to 30 HP
  • Compact models available for smaller shops and general-purpose machining
  • Larger travel models available for plates, fixtures, and longer workpieces
  • Economical machine platform for standard 3-axis CNC machining
  • Supported by Absolute’s service and applications engineering team
  • U.S.-based parts support, including critical components and spindle inventory

Specifications

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Item / Model
STM S9/40 Request a Quote
STM S9/50 Request a Quote
STM S10/40 Request a Quote
STM S10/50 Request a Quote

X Axis Travel

25.2″

29.9″

33.5″

39.4″

43.3″

51.2″

59.1″

63″

63″

78.7″

78.7″

Y Axis Travel

17.7″

17.7″

20″

20″

25.6″

27.6″

27.6″

31.5″

31.5″

35.4″

35.4″

Z Axis Travel

19.7″

19.7″

20″

20″

24″

27.6″

27.6″

29.5″

29.5″

33.5″

33.5″

Table Size

31.5″ x 17.7″

35.4″ x 17.7″

39.4″ x 19.7″

43.3″ x 19.7″

47.2″ x 23.6″

57.1″ x 25.6″

66.9″ x 25.6″

70.9″ x 31.5″

70.9″ x 31.5″

86.6″ x 35.4″

86.6″ x 35.4″

Table Load Capacity

1,760 lbs.

1,870 lbs.

2,200 lbs.

2,200 lbs.

2,860 lbs.

3,300 lbs.

3,300 lbs.

4,400 lbs.

4,400 lbs.

4,840 lbs.

4,840 lbs.

Spindle HP

20 HP

20 HP

20 HP

20 HP

20 HP

25 HP

25 HP

25 HP

30 HP

30 HP

30 HP

Spindle Speed

12,000 RPM

12,000 RPM

12,000 RPM

12,000 RPM

12,000 RPM

12,000 RPM

12,000 RPM

12,000 RPM

6,000 RPM

12,000 RPM

6,000 RPM

Spindle Drive

Direct Drive

Direct Drive

Direct Drive

Direct Drive

Direct Drive

Direct Drive

Direct Drive

Direct Drive

Belt

Direct Drive

Belt

ATC Capacity
(Arm-Type)

30

30

30

30

30

30

30

30

30

30

30

Weight

8,800 lbs.

9,240 lbs.

12,100 lbs.

12,760 lbs.

15,400 lbs.

18,700 lbs.

19,580 lbs.

24,200 lbs.

24,200 lbs.

31,900 lbs.

31,900 lbs.

Benefits for Metal Cutting Manufacturers

  • Affordable CNC machining capacity for shops requiring 3-axis milling, drilling, and tapping features
  • Broad model range with 11 available machines covering compact job shop work through larger travel applications
  • CAT 40 and CAT 50 spindle options to match different material removal and machining requirements
  • Fanuc 0i-MF Plus CNC control for familiar programming, operation, and shop-floor usability
  • 30-tool automatic tool changer standard across the lineup for flexible part processing and reduced setup interruptions
  • Direct-drive spindle options on CAT 40 models for high-speed general machining applications
  • Belt-driven CAT 50 models available for heavier cutting applications requiring more spindle torque
  • Backed by Absolute Machine Tools support with experienced service, applications engineering, and U.S.-based parts availability
  • Strong fit for high-volume job shops needing reliable, economical CNC equipment with practical specifications

Ideal Cutting Applications

  • General 3-axis CNC machining
  • Job shop milling, drilling, and tapping
  • Production machining
  • High-volume contract manufacturing
  • Fixture plates and tooling components
  • Aluminum, steel, and general-purpose materials
  • Mold bases and general mold components
  • Short-run and repeat part production
  • Replacement capacity for aging VMCs
  • Shops adding affordable spindle capacity
  • Components that do not require complex 5-axis machining or highly specialized machine construction
  • Manufacturers looking for economical vertical machining centers backed by U.S. service and parts support