Heavy-Duty Lathe

The heavy-duty lathe for massive parts is the high-capacity industrial lathe for machining work that exceeds the limits of a conventional lathe — parts up to 1640mm in diameter over the bed and 1250mm over the carriage, working lengths from 1500 to 12000mm, and a 22kW main motor. The heavy-duty lathe for massive parts delivers the torque required for aggressive roughing and precision finishing on alloy steels, cast iron and difficult materials.

The heavy-duty lathe for massive parts is the reference equipment of workshops in the power, marine, heavy machinery, railway and petrochemical industries that machine long shafts, rolls, cylinders, rotors and components of exceptional dimensions.

The heavy-duty lathe for massive parts has 21 forward speed steps (3,15–315 r/min) and 12 reverse (3,5–291 r/min), 56 longitudinal feeds and 56 cross feeds, and a complete thread-cutting system with 158 thread types — metric (44 types, 1–120mm), inch (31 types, 28–1/4), module (45 types, 0,5–60mm) and diametral pitch (38 types, 1/2–56DP). The 755mm guideway width and the robust 130mm-diameter spindle provide the structural rigidity needed for heavy cuts with large stock removal and minimal vibration on heavy parts. Transport, installation and commissioning included. 60-month warranty. Technical specifications — heavy-duty lathe for massive parts

Machining capacity

Main spindle

Feeds and slides

Rapid traverse speeds

Thread-cutting system — 158 types

Tailstock

Overall dimensions

The heavy-duty lathe for massive parts is configured at quotation — the bed length is selected according to the maximum size of the parts to be machined. Free technical consultancy available. Advantages of the heavy-duty lathe for massive parts

• Machining diameter 1640mm over the bed and 1250mm over the carriage — the heavy-duty lathe for massive parts covers the class of parts inaccessible to conventional lathes: generator and turbine rotors, hydraulic press cylinders, rolling-mill rolls, wheel hubs for mining machinery and large-diameter marine components. The 390mm difference between the over-bed and over-carriage diameters allows a steady rest or an additional support to be fitted for long, heavy parts without limiting the effective working diameter of the heavy-duty lathe for massive parts.

• Part length 1500–12000mm in 9 bed variants — the heavy-duty lathe for massive parts is available in 9 standard bed lengths, from 1500mm to 12000mm, allowing the exact configuration to be set for the maximum range of parts produced. This flexibility eliminates the compromise between a bed too short, which limits production, and one too long, which unnecessarily occupies workshop floor space. The corresponding turning lengths of the heavy-duty lathe for massive parts — from 1300mm to 11800mm — cover long shafts for pumps and compressors, transmission axles for heavy industry and components for large hydraulic presses.

• 22kW motor — high torque for aggressive roughing on hard materials — the heavy-duty lathe for massive parts has a 22kW main motor, a power level that provides the torque needed for cuts with large stock removal on alloy steels, grey cast iron, bronze and resistant materials. At the low speeds of the heavy-duty lathe for massive parts (3,15 r/min in step I), the torque is at its maximum — the critical condition for roughing large, heavy parts where feed and depth of cut are limited not by speed but by the rigidity of the part-machine-tool system.

• 21 forward and 12 reverse speed steps — the full range of operations on diverse materials — the heavy-duty lathe for massive parts has 21 forward speed steps (3,15–315 r/min) and 12 reverse steps (3,5–291 r/min), covering the entire range of operations from slow roughing of cast iron at low speed to medium-speed finishing of aluminium alloys. The large number of steps on the heavy-duty lathe for massive parts allows the optimal cutting speed to be selected for each material and operation, maximising tool life and surface quality.

• 56 longitudinal and 56 cross feeds — feed precision adaptable to any operation — the heavy-duty lathe for massive parts offers 56 longitudinal feed steps (0,1–12 mm/rev) and 56 cross feed steps (0,05–6 mm/rev), plus 56 steps for the top slide (0,025–3 mm/rev). This fine feed granularity of the heavy-duty lathe for massive parts allows precise adjustment of cutting parameters for every material-tool-operation combination, achieving the required surface roughness without compromising productivity.

• 158 thread types — metric, inch, module and diametral pitch — the heavy-duty lathe for massive parts has the most complete thread-cutting system in its class: 44 metric threads (1–120mm), 31 inch threads (28–1/4 TPI), 45 module threads (0,5–60mm) and 38 diametral-pitch threads (1/2–56DP), totalling 158 mechanically selectable types with no complex change-gear swaps. This capability makes the heavy-duty lathe for massive parts the universal machine for workshops working with international customers using different technical standards or with spare parts for installations with mixed metric-inch specifications.

• 755mm guideway and Ø130mm spindle — structural rigidity for heavy parts — the heavy-duty lathe for massive parts has a 755mm guideway width and a 130mm-diameter main spindle, construction parameters that provide the structural rigidity needed to machine parts weighing several tonnes without distorting the bed or producing vibration that would affect surface quality. The A2-15 spindle nose with 8×M22 of the heavy-duty lathe for massive parts allows the high-capacity chucks needed for the secure clamping of heavy parts to be fitted.

• Tool post with ±90° swivel and slides with extended travel — the heavy-duty lathe for massive parts has a tool post with a ±90° swivel angle for machining tapers and inclined surfaces, a cross slide with 630mm travel and a top slide with 300mm. The 45×260mm tool shank accepts the robust cutting tools required at large depths of cut. The rapid traverse speeds of the heavy-duty lathe for massive parts — 3740mm/min longitudinal and 1870mm/min cross — reduce non-productive time between operations.

Applications — heavy-duty lathe for massive parts

The power industry uses the heavy-duty lathe for massive parts to machine generator and steam turbine rotors, hydraulic turbine shafts, hydraulic press cylinders and large-dimension components of industrial centrifugal pumps. The working length up to 11800mm and the 1640mm diameter of the heavy-duty lathe for massive parts cover the typical dimensions of medium- and high-power energy components.

The marine industry and heavy machinery construction use the heavy-duty lathe for massive parts to machine propeller shafts, intermediate shafts, steering pivots, rolling-mill rolls and guide bushings for presses. The complete thread-cutting system of the heavy-duty lathe for massive parts — including module and diametral-pitch threads rarely available on production lathes — is critical for the large transmission components and gears used in these industries.

The railway and defence industries use the heavy-duty lathe for massive parts to true and re-machine wagon axles, wheel hubs, flanges and large-diameter structural components. The inch thread-cutting capability of the heavy-duty lathe for massive parts is required for components built to American or British standards, common in the railway fleet and in imported equipment. Heavy-duty lathe vs. CNC lathe — the right choice

The heavy-duty lathe for massive parts and the CNC metal turning lathe are two complementary machines addressing different needs.

The heavy-duty lathe for massive parts is chosen when the part dimensions exceed the capabilities of a standard CNC lathe — diameters of 800–1640mm, lengths of 3–12m and weights of several tonnes are its exclusive domain. The mechanical control of the heavy-duty lathe for massive parts with 21 speed steps and 56 feeds offers the flexibility needed to machine one-off parts and small batches, common in industrial repairs and the production of spare parts for heavy machinery.

The CNC lathe is the choice for medium-to-large series of precision parts up to 800mm in diameter, where automation of the CNC program, ±0.015mm accuracy and part-to-part repeatability are priorities. The two lathes complement each other in a complete machining workshop. Frequently asked questions about the heavy-duty lathe for massive parts

Which bed length is recommended for the heavy-duty lathe for massive parts?

The optimal bed length of the heavy-duty lathe for massive parts is determined by the longest part currently machined, with a 15–20% margin for clamping and tailstock and tool-post clearance. UZINEX recommends the correct length at quotation according to the specified range of parts. Can the heavy-duty lathe for massive parts cut inch threads?

Yes. The heavy-duty lathe for massive parts has 31 inch thread types (28–1/4 TPI), mechanically selectable with no special change gears. This capability is critical for workshops machining parts built to British or American technical standards or for imported installations with inch specifications. Is the heavy-duty lathe for massive parts eligible for EU funding?

Yes. UZINEX is a member of the Enterprise Europe Network and supplies equipment for EU-funded projects — PNRR, the Regional Programme, the Just Transition Programme, PNDR. The heavy-duty lathe for massive parts can be included in SEAP/SICAP. Leasing and credit options are available on the UZINEX credit and leasing page. Why UZINEX for the heavy-duty lathe for massive parts

The heavy-duty lathe for massive parts is a major capital purchase — selecting the correct bed-length configuration, verifying transport and installation capacity and securing long-term technical support are critical to making the investment pay off.

• Bed-length configuration included — at quotation UZINEX recommends the optimal bed length of the heavy-duty lathe for massive parts according to the specified range of parts and the available workshop space.

• Specialised transport and installation included — the heavy-duty lathe for massive parts has dimensions and weights that require specialised transport and installation with appropriate means, provided by UZINEX to the customer's site.

• 60-month warranty — extended coverage for continuous industrial production.

• Spare parts in stock — components and consumables available quickly, with no prolonged downtime of the heavy-duty lathe for massive parts.

• Nationwide technical support 24–48 hours — technicians experienced with heavy machinery and nationwide coverage.

• EU-funding eligible — complete technical documentation for PNRR, POR and other active industrial modernisation programmes.

• Operator training included — commissioning and complete operator training on delivery of the heavy-duty lathe for massive parts.

UZINEX heavy-duty lathe for massive parts — diameter 1640mm / 1250mm, part length 1500–12000mm (9 variants), 22kW motor, 21+12 speed steps (3,15–315 r/min), 56+56 feeds, 158 thread types (metric/inch/module/diametral), 755mm guideway, Ø130mm A2-15 spindle, 630mm cross slide, 3740mm/min rapid traverse, Ø160mm tailstock, 300mm stroke, 60-month warranty, transport and commissioning included throughout Romania.