94     Haas Automation, Inc.    www.HaasCNC.com
RIGID 2-AXIS TURNING 
CENTERS FOR EVERY 
SHOP
ST SERIES
Big-Bore Models
The ST-15, ST-25, ST-28, ST-35, and ST-45 pair the footprint and travels of their standard siblings with bigger 
bar capacities. At the top of the range, the ST-55 large-through-bore lathe swallows 12.5" (318 mm) bar stock, 
making it the machine of choice for oilfield tubulars, heavy pipes and fittings, couplers, and large shafts.
The Haas ST Series, high-
performance turning centers, 
are designed to provide setup 
flexibility, extreme rigidity, and 
high thermal stability. The ST 
Series machines offer the best 
performance for the money – the 
best value – in their class.
6.5"-18" CHUCK SIZE 
(165-457 mm)
1.75"-12.5" BAR (43.5-318 mm)
1000-6000 rpm
15-55 hp (11.2-41 kW)
ST LATHE MAX CAPACITIES 	
Model
Spindle Nose
Bar Capacity
2-Axis Max Turning Diameter
ST-10
A2-5
1.75" (44 mm)
12" (305 mm)
ST-15
A2-6
2.5" (63.5 mm)
12" (305 mm)
ST-20
A2-6
2.5" (63.5 mm)
13" (330 mm)
ST-25
A2-6
3.0" (76 mm)
13" (330 mm)
ST-28
A2-8
4.0" (102 mm)
13" (330 mm)
ST-30
A2-6
3.0" (76 mm)
15" (381 mm)
ST-35
A2-8
4.0" (102 mm)
15" (381 mm)
ST-40
A2-8
4.0" (102 mm)
30" (762 mm)
ST-45
A2-11
7.0" (178 mm)
30" (762 mm)
ST-55
A2-20
12.5" (318 mm)
25.5" (648mm)

View this content as a flipbook by clicking here.