JET GH-26120ZH 4-1/8" Spindle Bore Geared Head Lathe from JET is engineered for high-output production environments where precision, durability, and throughput are paramount. Built using the Certified Meehanite casting process, this heavy-duty geared head lathe delivers consistent and reliable operation across demanding machining tasks, backed by the industry-leading JET Two Year Warranty.

Key Features

• Constructed using the Certified Meehanite casting process for exceptional rigidity and long-term durability
• Clutch operated headstock with all headstock gears hardened and ground for smooth, precise power transmission
• Universal gearbox supporting 48 inch threads, 22 metric threads, 22 diametral pitch threads, and 18 modular pitch threads for maximum versatility
• Modular pitch thread range of 0.5-7 for broad compatibility across workpiece requirements
• 65 longitudinal and cross feed rates enabling fine control over material removal and surface finish
• 12 spindle speeds providing flexible RPM selection for a wide variety of workpiece materials and diameters
• Rapid traverse on the apron significantly increases productivity in high-output production applications
• Fully integrated coolant system with a 1/8 HP coolant pump motor to maintain workpiece and tool temperatures during extended runs
• 4-1/8" spindle bore accommodates large-diameter stock for increased machining capability
• 8" bed gap (8" length of gap) for turning larger-diameter workpieces over the gap
• Geared head drive for positive, reliable power delivery without belt slippage
• Accepts a maximum tool size of 1-1/4 x 1-1/4 in.

Specifications

• Stock Number: 321890
• MPN: JT9-321890
• Drive: Geared Head
• Motor: 10 HP, 230/460, 3 Ph
• Motor Power (HP): 10
• Motor Voltage (V.): 230/460
• Coolant Pump Motor (HP): 1/8
• Spindle Bore: 4-1/8 in.
• Number of Spindle Speeds: 12
• Carriage Travel (In.): 108-1/4
• Compound Slide Travel (In.): 5-1/2
• Bed Gap (In.): 8
• Length of Gap (In.): 8
• Max Tool Size (In.): 1-1/4 x 1-1/4
• Number of Inch Threads: 48
• Number of Metric Threads: 22
• Diametral Pitch Threads Number: 22
• Modular Pitch Threads Number: 18
• Modular Pitch Threads Range: 0.5-7
• Number of Longitudinal and Cross Feed Rates: 65
• Net Weight (Lbs.): 9,362
• Gross Weight (Lbs.): 9,471
• Warranty: JET Two Year Warranty

Frequently Asked Questions

What type of casting process is used in the construction of this lathe?

The JET GH-26120ZH is built using the Certified Meehanite casting process, which provides superior rigidity, vibration damping, and long-term durability compared to standard cast iron construction - making it well suited for heavy-duty production machining.

How many thread types and configurations does this lathe support?

This lathe supports 48 inch threads, 22 metric threads, 22 diametral pitch threads, and 18 modular pitch threads (with a modular pitch thread range of 0.5-7), all delivered through a universal gearbox for broad threading versatility.

What power requirements does the JET GH-26120ZH require?

The main spindle motor is rated at 10 HP and operates on 230/460V, 3-phase power. The integrated coolant pump motor is rated at 1/8 HP. A dedicated 3-phase electrical supply is required for installation.

What warranty is included with this lathe?

The JET GH-26120ZH is backed by the industry-leading JET Two Year Warranty, providing confidence in long-term performance and reliability for production environments.