Screw-cutting lathe JPAuto Industrial GX250L 250x700 750W

The GX250 metal lathe has automatic longitudinal and transverse feed, and is also characterized by high quality workmanship. The headstock has a spindle speed selection box, which allows you to change the rotation speed of the lathe chuck without loss of torque. There is also a lead screw feed speed change box, which allows you to cut threads without changing gears in the guitar. This machine can cut metric, inch, modular and pitch threads. The machine is equipped with a 750-watt electric motor with a single-phase (220V) connection. An option with a 380V 3-phase motor is possible. The bed is hardened and precision ground.

Characteristics:

Model: GX250L

The lead screw guard is already installed on the machine

Hardened and ground bed guides

Hardened spindle (DIN 6350)

Power supply: 1 phase, 220 V (AC) / 50 Hz (optional 380 V)

Electric motor power: 0.75 kW

Motor rotation speed: 1400 rpm

Maximum diameter of workpiece processed over the bed: 250 mm

Maximum diameter of workpiece processed above the support: 150 mm

Height of centers above bed: 125 mm

Distance between two centers: 700mm

Maximum cross feed travel: 140 mm

Maximum travel of small longitudinal feed: 75 mm

Upper slide rotation range: ±45°

Bed width: 140 mm

Spindle speed: 80-1600 rpm

Number of spindle rotation speeds: 12

Spindle Bore Taper: Morse No. 4 (MT4)

Spindle hole diameter: 26 mm

Lathe chuck: K11-125 (3-jaw)

Metric thread pitch: 0.25-2.5 mm

Inch thread pitch: 12-96 1/n"

Tailstock Quill Taper: Morse #3 (MT3)

Tailstock quill diameter: 35 mm

Tailstock quill travel: 80 mm

Tailstock lateral movement: ±15 mm

Maximum number of cutters in the tool holder: 4 pcs.

Tool mounting space size: 15x21 mm

Tool holder size: 65mm x 65mm

Caliper dial scale graduation: 0.25 mm (0.01")

Dial scale on cross slide: 0.05 mm (0.002")

Dial scale on upper slide: 0.025 mm (0.001")

Tailstock quill dial scale graduation: 0.025 mm (0.001")

Bed material: cast iron

Overall dimensions of the machine: 1350x500x470 mm

Weight: 180/200 kg

Equipment:

* Center MK3 1 piece

* Center MK4 1 piece

* 3 open-end wrenches

* Reverse cams

* Lathe chuck key

* Key for installing cutters

* Tool box

Additional equipment

* Cabinet (stand) with a tray for collecting coolant

* 4 jaw lathe chuck

* Cutters with replaceable inserts

*Digital display device

* Gears for cutting inch, modular and pitch threads

* Work area lighting

* Lunette movable and non-movable

* Coolant pump

Peculiarities:

• High processing precision

• Rigid construction due to cast iron frame

• Automatic longitudinal and transverse feed

• Cutting metric and inch threads

• Right/left spindle rotation with 12 speeds

• Metal gears in gearboxes

• Through-hole spindle for machining long workpieces

• Rotating the top of the caliper to machine conical surfaces

• Four position tool holder

• Tailstock with lateral axle shift function

• Powerful asynchronous motor

• Limbs on flywheels

• Intuitive and comfortable control ergonomics

• Easy to operate and maintain

Area of application: individual production (at home), educational institutions, workshops, small factories, etc.

GX250L is a tabletop screw-cutting lathe with a maximum processing diameter over the bed of 250 mm and a distance between centers of 700 mm, which is designed for working with workpieces made of steel, cast iron and non-ferrous alloys, etc.

Using this model, you can easily carry out precise processing due to automatic longitudinal and transverse feeds, as well as cut metric and inch threads. The feed speed and thread pitch are adjusted using handwheels according to the information in the tables located on the device panel.

Attention! When switching from cutting metric threads to inch threads, it is necessary to replace one gear in the guitar. Additional gears for cutting all non-metric threads are purchased separately, as a set.

An asynchronous motor is installed in the headstock, which transmits torque to the workpiece through a 3-jaw lathe chuck. Its rotation speed is adjustable in the range of 80-1600 rpm through a 12-speed gearbox, built on the basis of wear-resistant metal gears. For processing long workpieces, the spindle has a through hole with a diameter of 26 mm.

Attention! 3-jaw chucks are typically used for clamping round, triangular and hexagonal workpieces. To fix square-shaped workpieces, you must use a chuck with 4 jaws.

At the other end of the bed there is a supporting tailstock. It, like the longitudinal support, moves along V-shaped and flat ground guides. All moving parts of the machine are equipped with grease fittings.

Up to 4 cutters can be installed in the tool holder at the same time, which greatly facilitates and speeds up the work process. For the convenience of cutting cones, the machine provides rotation of the upper longitudinal slide in the range of 0-45°.

Due to the massive cast iron frame, the machine has a rigid structure and low vibration levels. Power supply is supplied from a single-phase alternating current network with a voltage of 220 V and a frequency of 50 Hz. It is also possible to order this machine for 380 V.

Despite its relatively compact size, the GX250L model has the layout of classic machines, so it easily provides high-quality processing.