USED TAKISAWA EX-122 – 1998

The 1998 Takisawa EX-122 is a heavy-duty 2-axis CNC turning center designed for machining large-diameter and long-shaft components that require exceptional rigidity, high torque, and consistent accuracy. Manufactured by Takisawa Machine Tool Co., Ltd., one of Japan’s most respected builders of CNC lathes, the EX Series was engineered for demanding applications in oil and gas, mining, power generation, heavy equipment, transportation, and industrial manufacturing. The EX-122 combines a massive cast iron slant-bed construction, large spindle bore, hydraulic tailstock, and high-torque geared spindle, making it ideal for heavy roughing as well as precision finishing operations.

Built with rigid box guideways and a heavily reinforced machine structure, the Takisawa EX-122 delivers outstanding vibration damping and long-term machining stability. The machine provides approximately 13.4 inches (340 mm) of X-axis travel and 60 inches (1,524 mm) of Z-axis travel, allowing it to machine long shafts, rollers, hydraulic cylinders, and large industrial components in a single setup. The machine features a 21-inch hydraulic chuck, an A2-15 spindle nose, and a large 7.87-inch (200 mm) spindle bore capable of handling substantial bar stock. Its geared spindle operates from 12 to 1,200 RPM and is powered by a 35 HP (26 kW) spindle motor, providing exceptional torque for machining alloy steels, stainless steel, cast iron, and other difficult materials. Rapid traverse rates of up to 787 IPM (20 m/min) on the X-axis and 944 IPM (24 m/min) on the Z-axis minimize non-cutting time while maintaining productivity.

Although newer EX-122 models were commonly equipped with Fanuc 21i or 22i controls, 1998 machines were typically supplied with a Fanuc 18-T CNC Control or a similar Fanuc turning control depending on the original configuration and market. The machine utilizes a 10-station automatic turret capable of supporting heavy-duty turning, boring, threading, grooving, and drilling operations. Standard equipment generally includes a programmable hydraulic tailstock, automatic lubrication, flood coolant system, spindle chiller, hydraulic chucking, and chip conveyor. Optional accessories such as steady rests, bar feeders, tool presetters, and high-pressure coolant systems further expand the machine’s capabilities for demanding production environments.

The Takisawa EX-122 is widely used throughout the oil and gas, energy, shipbuilding, mining, aerospace, and heavy industrial manufacturing sectors. Typical applications include hydraulic cylinders, large shafts, rollers, pump components, valve bodies, transmission shafts, pipe fittings, and oversized precision-machined components. Its combination of high spindle torque, large work envelope, and robust construction makes it an excellent solution for manufacturers producing heavy-duty precision parts.

Purchasing a used 1998 Takisawa EX-122 provides manufacturers with premium Japanese heavy-duty turning capability at a significantly lower investment than purchasing a new large-frame CNC lathe. Takisawa machines are renowned for their durability, machining accuracy, and long service life. A properly maintained EX-122 continues to deliver dependable performance, making it an outstanding investment for heavy turning applications.

TAKISAWA EX-122 SPECIFICATIONS

Axis

Travels / Work Envelope

Spindle

Tool Changer

CNC Control

Coolant / Chip Management

Power Requirements

Dimensions

General Information

HOW MUCH DOES A USED TAKISAWA EX-122 – 1998 COST?

A used 1998 Takisawa EX-122 typically sells for $40,000 to $85,000 USD, depending on machine condition, spindle hours, maintenance history, tooling package, CNC control configuration, and installed options such as steady rests, chip conveyor, hydraulic tailstock, or bar handling equipment. Machines with documented maintenance records and production-ready tooling generally command higher resale values because they can be integrated into production with minimal downtime.

Before purchasing a used Takisawa EX-122, buyers should inspect the spindle bearings, box guideways, turret indexing, hydraulic systems, tailstock alignment, lubrication system, and overall machine geometry. A properly maintained 1998 Takisawa EX-122 provides excellent long-term value by combining heavy-duty cutting capability, dependable Japanese engineering, and proven machining reliability, making it an outstanding investment for manufacturers producing large, precision-turned components.

TAKISAWA EX-122 VS TAKISAWA EX-108 – WHICH ONE TO BUY?

The Takisawa EX-122 and Takisawa EX-108 are precision CNC turning centers designed for high-speed, high-accuracy machining of small to medium-sized components. Both machines are recognized for their rigid construction, dependable spindle performance, and long service life, making them popular choices in the automotive, medical, electronics, hydraulic, aerospace, and general manufacturing industries. While both models deliver outstanding machining quality, the Takisawa EX-122 offers a larger machining capacity, greater turning diameter, and increased work envelope compared to the EX-108, making it better suited for manufacturers producing larger or longer components.

The Takisawa EX-108 is ideal for machining compact precision parts such as bushings, fittings, pins, valve components, and threaded parts where fast cycle times and high-volume production are priorities. Its compact footprint also makes it an excellent choice for shops with limited floor space.

The Takisawa EX-122 builds upon this platform by offering additional spindle capacity and greater machining flexibility. It is commonly used for machining shafts, hydraulic components, automotive parts, flanges, bearing housings, and precision mechanical components that require longer turning lengths and heavier cutting capability.

Both machines provide excellent reliability, spindle accuracy, and production efficiency. The EX-108 is recommended for manufacturers focused on smaller precision components, while the EX-122 is the better investment for shops requiring increased machining capacity without sacrificing precision or productivity.

For companies purchasing a used CNC lathe, the Takisawa EX-122 offers an excellent combination of durability, machining versatility, and long-term value.

TAKISAWA EX-122 SPINDLE NOT TURNING – CAUSES AND TROUBLESHOOTING

If the spindle on a Takisawa EX-122 does not rotate, the issue may be caused by spindle drive faults, CNC control alarms, electrical failures, hydraulic problems, lubrication issues, chuck clamping faults, or machine safety interlocks. A systematic troubleshooting process helps identify the root cause quickly and minimizes production downtime.

Begin by checking the CNC control for active alarms. Emergency stop activation, door interlock faults, spindle drive alarms, servo errors, lubrication warnings, hydraulic pressure alarms, chuck clamp faults, or thermal overload conditions can prevent spindle operation. Resolve all alarms before attempting to restart the spindle.

Inspect the spindle drive system for electrical problems such as loose wiring, damaged encoder cables, faulty spindle amplifiers, blown fuses, spindle motor overload conditions, or overheating. Verify the operation of the spindle lubrication system, hydraulic unit, coolant circulation, compressed air supply, and machine power because these systems are essential for reliable spindle performance.

Review the CNC program to confirm the correct spindle commands are present. Missing M03 or M04 commands, incorrect spindle speed settings, spindle orientation commands, chuck clamping issues, or interrupted machining cycles may prevent spindle startup.

If the spindle begins rotating but stops unexpectedly, inspect spindle bearings, chuck condition, spindle nose cleanliness, tooling setup, hydraulic clamping force, and cutting loads. Excessive vibration, unusual spindle noise, overheating, or poor workholding may indicate spindle bearing wear or mechanical damage requiring service.

Routine spindle inspections, lubrication maintenance, hydraulic servicing, and preventive maintenance help reduce unexpected spindle failures and maximize machine reliability.

TAKISAWA EX-122 MAINTENANCE AND PREVENTIVE CARE GUIDE

The Takisawa EX-122 is designed for continuous production of precision turned components. Regular preventive maintenance is essential for maintaining spindle accuracy, machine reliability, and long-term production efficiency.

Daily maintenance should include removing chips from the machining enclosure, spindle nose, chuck, turret, guideways, and chip conveyor. Operators should inspect coolant levels, coolant concentration, lubrication systems, hydraulic pressure, compressed air supply, spindle condition, and cutting tools before beginning production. Keeping the spindle nose and chuck jaws clean improves workholding accuracy and machining consistency.

Weekly maintenance should include inspecting coolant pumps, chip conveyors, centralized lubrication systems, hydraulic units, turret indexing mechanisms, electrical cabinet filters, pneumatic components, and coolant filtration systems. Chips should be removed from guideways, turret stations, and coolant passages to prevent contamination and premature wear.

Monthly inspections should focus on spindle runout, chuck accuracy, turret alignment, ball screws, linear guideways, spindle bearings, encoder cables, lubrication lines, hydraulic hoses, electrical connections, coolant filtration systems, and machine leveling. Machine geometry should also be verified periodically to maintain machining precision.

Additional preventive maintenance includes monitoring spindle vibration, checking axis backlash, replacing worn filters, servicing lubrication systems, inspecting hydraulic components, and maintaining complete maintenance records. Early identification of wear reduces repair costs and prevents unexpected production interruptions.

A structured preventive maintenance program extends spindle life, improves machining accuracy, enhances productivity, and ensures the Takisawa EX-122 continues delivering dependable machining performance throughout its service life.

FAQ

What is the Takisawa EX-122?

The Takisawa EX-122 is a CNC turning center designed for precision turning, drilling, boring, threading, and general machining of small to medium-sized components. It features a rigid machine structure, high-performance spindle, precision turret, advanced CNC control, and efficient chip management to deliver excellent accuracy and repeatability.

The machine is widely used in automotive, aerospace, medical, hydraulic equipment, electronics, and precision engineering industries. It is capable of machining shafts, bushings, valve bodies, threaded components, hydraulic fittings, bearing housings, flanges, and numerous other precision-machined parts manufactured from steel, stainless steel, aluminum, brass, and engineering alloys.

Its reliable spindle performance, rigid construction, and consistent machining accuracy make the Takisawa EX-122 a popular choice for both job shops and high-volume production facilities.

What are the most common problems with the Takisawa EX-122?

The most common problems with the Takisawa EX-122 include spindle alarms, turret indexing faults, hydraulic system issues, lubrication warnings, servo drive errors, encoder failures, coolant contamination, chuck clamping problems, spindle orientation faults, electrical communication errors, and axis positioning issues.

Machines operating continuously may also experience spindle bearing wear, turret alignment problems, hydraulic pressure fluctuations, ball screw backlash, thermal expansion, coolant pump failures, and normal mechanical fatigue over time. Poor lubrication, contaminated coolant, worn tooling, excessive cutting loads, and delayed preventive maintenance can accelerate machine wear and reduce machining accuracy.

Routine spindle inspections, lubrication servicing, hydraulic maintenance, coolant management, turret alignment verification, machine calibration, electrical inspections, and scheduled preventive maintenance help minimize downtime and ensure the Takisawa EX-122 continues to provide reliable, accurate, and highly productive machining performance.