HAIDI TX‑750HMY/1500 Slant‑Bed CNC Turn‑Mill Center – Hard Box Guideway, 4,000 rpm Spindle, and C‑Axis with Y‑Axis for Complex Multi‑Process Machining

Why slant‑bed hard guideway construction matters for heavy cutting

For workshops that regularly machine medium‑to‑large workpieces requiring both heavy material removal and precise finishing, the choice of guideway system directly affects productivity and part quality. Unlike linear guideways that can suffer from rolling element fatigue and indentations under sustained heavy loads, the TX‑750HMY/1500 employs a 30° integral cast iron slant bed with hardened box guideways. The guideways are induction‑hardened to HRC 52–54, precision ground, and mated with Turcite‑B coated sliding surfaces that are hand‑scraped to achieve optimal contact. Hard box guideways provide a larger contact area that distributes cutting forces evenly and absorbs vibration during interrupted cuts, making the machine ideal for heavy turning of alloy steels, stainless steels, and cast irons.

The one‑piece high‑strength HT300 cast iron bed integrates all guideways and mounting surfaces into a single rigid structure, eliminating alignment issues that can occur with bolted or fabricated designs. With a net weight of approximately 10 tons, the machine’s substantial mass contributes to vibration damping and overall cutting stability.

Spindle system – high torque and high speed

The spindle is driven by a 17 kW high‑torque motor, achieving a maximum speed of 4,000 rpm through an A2‑11 spindle nose. This combination provides both the low‑end torque required for roughing passes on large‑diameter forgings and the high‑speed capability needed for fine finishing and small‑diameter work. The 102 mm spindle bore and 88 mm bar capacity accommodate medium‑to‑large diameter bar stock, reducing material waste and improving production efficiency for shaft‑type components.

C‑axis control with 0.001° resolution enables precise spindle positioning for milling, drilling, and tapping operations. The spindle design incorporates a labyrinth seal that protects the precision SKF P4 bearings from coolant ingress – a critical detail that extends bearing life in demanding production environments.

12‑station BMT65 servo turret with live tooling

The TX‑750HMY/1500 is equipped with a 12‑station BMT65 servo turret. The turret accepts both stationary tools (25×25 mm square shank, 40 mm round) and live tools (ER40 collet). Power for live tools is provided by a 7.5 kW motor, delivering 4,000 rpm to support efficient milling, drilling, and tapping. The servo‑driven turret provides fast, reliable tool indexing with high repeatability, and the hydraulic clamping system ensures that tools remain rigidly locked during heavy cuts.

Y‑axis for off‑center machining

The Y‑axis extends the machine‘s capability beyond standard turning and live tooling operations. With a travel of ±70 mm, the Y‑axis enables the machining of features located off the workpiece centerline without special tooling or multiple setups. This is particularly useful for milling flats on shafts, machining keyways that are not aligned with the part center, and drilling holes on radial faces.

Heavy‑duty hydraulic tailstock

A tailstock is essential for machining long shafts. The TX‑750HMY/1500 features a heavy‑duty hydraulic tailstock with a 130 mm diameter quill and 120 mm of programmable stroke. The tailstock body is programmed to move along the Z‑axis via the CNC control and automatically clamps in position – eliminating the need for manual tailstock positioning and reducing setup time.

What makes the TX‑750HMY/1500 cost‑effective

The TX‑750HMY/1500 delivers the core capabilities of a turn‑mill center – 30° integrated slant bed, hardened box guideways, C‑axis, Y‑axis, and BMT65 live tooling – at a price significantly lower than comparable European or Japanese machines. By focusing on proven, mature design principles and well‑established supply chains, HAIDI Machine provides a robust, reliable platform for shops that need to expand their machining capabilities without over‑investing.

Who is the TX‑750HMY/1500 for?

• Shops producing hydraulic valve bodies, automotive shafts, and long shaft components requiring both turning and milling in one setup

• Manufacturers machining alloy steels, stainless steels, or cast irons where heavy cutting forces demand a rigid guideway system

• Job shops looking to reduce work‑in‑progress and lead times by consolidating multiple operations into a single machine

• Facilities with limited floor space needing a compact yet capable turn‑mill center (machine footprint: 5.3 m × 2.2 m)

➡️ For complete specifications, optional configurations, or a budget quotation, click here to contact the HAIDI Machine sales engineering team.