Super Turning Center Tackles Big Parts, Heavy Duty Turning
ST-80CH Super Turning Center by Johnford:
Super turning center tackles big parts, heavy duty turning
· Big lathe tackles large parts and heavy duty cutting
· Great workhorse for oil-field, energy, and construction equipment industries
· 50 HP spindle and 4-speed gearbox deliver high torque at low RPM
· One-piece, 60 degree slant bed design provides the rigidity for heavy turning and unparalleled ergonomics
· Torque tube design delivers high rigidity and heat dissipation
Lorain, Ohio - The Johnford ST-80CH is a heavy duty, high precision CNC turning center built for industries such as oil-field, energy, and construction equipment - industries that need large lathes for big parts. Absolute Machine Tools, Inc. offers this massive 35,500 lb. slant bed machine, which is available in bed lengths up to 240" and with spindle holes up to 24". Our one piece 60 degree casting design was built for unparalleled ergonomics for easy operator access and unprecedented chip flow. Solid machine construction is key to the ST-80CH's heavy-duty cutting performance. Built in classic style, the 60 degree slant bed is a torque tube design. The torque tube, or hole cast through the center of the slant bed, provides an extremely rigid bed and excellent heat dissipation.
Built tough, with a one piece Meehanite iron design, the turning center takes full advantage of its powerful 50 HP high torque spindle motor and standard four-speed gear box, which delivers high torque at low RPM. An optional 60 HP spindle motor is available for high power cutting. The precision spindle structure is mounted using precision double row roller bearings in conjunction with angular contact ball bearings for high rigidity and accuracy. The spindle quill inner and outer linings are precision ground for fit with the spindle, thus ensuring extreme concentricity and accuracy.
The machine also features hand scraped, square box ways that provide the rigidity for heavy duty turning. Turcite B applied to all mating sliding surfaces ensures high rapid traverse rates and accurate positioning. In addition, the ST-80CH's headstock, tailstock, and saddle are all mounted on the same plane at a 60 degree angle to ensure precision and thermal stability.
The coolant tank is separate from the machine base to prevent heat transfer from the coolant to the machine casting, which ensures precision and promotes easy clean out and maintenance. To further ensure accuracy and precision, the ballscrews are double nut type and pretensioned to eliminate thermal growth.
A 12 station bi-directional turret or optional BMT live turret provides 0.5 second indexing as well as coolant through the tool holders. A full C axis with live tools is available for applications requiring milling operations. Fanuc CNC controls are standard.
Other standard features include a hydraulic 20" chuck with soft jaws, a chip conveyor, and a hydraulic, programmable tailstock body and quill. Options include a C axis with live tools. The C axis accuracy is 0.001 degrees. The live tooling used for the C-axis is backed by a 10 HP (15 HP and 20 HP optional) spindle motor that delivers up to 4,000 RPM.
ST-80CH SUPER TURNING CENTER SPECIFICATIONS
Capacities
Swing over bed 39.4"
Standard Turning Diameter 31.5"
Swing Over Carriage 31.5"
Maximum Cross Travel (X Axis) 16.5"
Maximum Longitudinal Travel (Z Axis) 78.7"
Distance Between Centers 88.5"
Spindle
Spindle Motor 50 HP (60 HP optional)
Spindle Nose A2-15
Spindle RPM 0 - 1,500 (20" chuck)
0 - 1,200 (24" chuck)
Hole Through Spindle 5.98"
Bar Capacity 5.47"
Hydraulic Chuck 20", 3-jaw
Feeds
Rapid Traverse Rate X, Z 394, 472 IPM
Cutting Feed Rate 0.01 - 315 IPM
Positioning Accuracy +/- 0.0003" full stroke
Repeatability +/- 0.0002"
About Absolute Machine Tools, Inc.
Absolute Machine Tools, Inc. provides advanced metalworking solutions and comprehensive services for production machining, mold/die machining, and production turning. A leading importer and distributor of high-performance CNC machining and turning equipment for the past 25 years, the company helps machine shops and manufacturing facilities improve their production processes to be more competitive in a tough global environment.
Products and Services
Absolute Machine Tools works with its partners to offer the most rugged, accurate, and productive machine tools in the industry. It also supplies a diverse range of previously owned equipment. The company has built its reputation on unsurpassed applications-engineering service and support, comprehensive training, and innovative preventive-maintenance programs. In addition to three direct regional offices, a nationwide network of regional distributors is in place to help North American manufacturers with their toughest production challenges.
Absolute's partners include:
· Roundtop (Johnford) Machinery - OEM of heavily-constructed and highly productive Johnford machining and turning centers and large boring mills
· Tongtai - (former manufacturer of Hitachi-Seiki CNCs) OEM of high performance, high productive turning centers, 5-Axis machining centers, and premium horizontal machining centers
· You Ji - OEM of massive custom-built (turn-key style) vertical turning centers
· Quicktech - OEM of multi-axis, multi-spindle, multi-tasking quick turning centers
· AccuteX EDM - OEM of CNC wire EDMs, die sinker EDMs, and hole drilling EDMs
For more about Absolute Machine Tools, its product lines, and services, please visit www.absolutemachine.com or call (800) 852-7825.
Media contact:
Courtney Ortner
(440) 960-6911
cortner@absolutemachine.com
