Euroturn 6/52

For a hydraulic cylinder rod end blank (50 mm diameter, 1045 steel, 5 turning operations + 1 boring + 1 threading): Single-spindle CNC turning center: 120-180 seconds = 20-30 parts/hour. Euroturn 6/52 at 6 spindles: 20-35 seconds cycle per station = 103-180 parts/hour. Throughput advantage: 4-6x. For a mobile hydraulic equipment supplier running 200,000 rod end blanks annually: single-spindle turning requires 6,700-10,000 machine hours (approximately 4-5 CNC lathes); the 6/52 requires 1,110-1,940 hours (approximately 1 machine). This represents elimination of 3-4 CNC turning centers — approximately $600,000-$1,200,000 in avoided machine purchases — and proportional reductions in operator headcount and facility space.

Euroturn 6/52 (CNC) vs Davenport or National Acme cam multi-spindles at 52 mm: (1) Changeover time: 6/52 requires 5-10 hours for a complete CNC program change; cam multi-spindles require 2-4 days for cam replacement, grinding, and setup — a decisive advantage for shops running 5+ part families. (2) Minimum economic batch size: 6/52 is economic at 30,000-100,000 parts per run; cam multi-spindles typically require 500,000+ parts per cam set to amortize cam fabrication. (3) Complex geometry: 6/52 CNC enables tapered profiles, compound curves, and programmatic lead variation impossible on cam machines. (4) Production rate: at high volumes on simple parts, cam multi-spindles can achieve slightly shorter cycle times due to mechanical timing precision vs servo positioning overhead. (5) Total cost: for mixed-volume programs, the 6/52 is almost always more economical. For single-part, single-speed production programs at millions per year, cam machines remain competitive.

The Euroturn 6/52 machines the following alloy steels at 52 mm bar diameter: (1) 1045 medium carbon steel — most common for hydraulic cylinder and general engineering components; cutting speed 150-200 m/min coated carbide, feed 0.15-0.3 mm/rev; (2) 4140 chromium-molybdenum steel (pre-hardened 28-34 HRC) — for high-strength rod ends and coupling bodies; cutting speed 120-160 m/min, requires tough insert grades; (3) 4340 nickel-chromium-molybdenum steel — for aerospace and high-strength industrial components; cutting speed 100-140 m/min; (4) 303 free-machining stainless — for valve and fitting bodies; cutting speed 100-130 m/min; (5) 316L austenitic stainless — for corrosion-resistant process control components; cutting speed 80-110 m/min with positive-rake inserts; (6) Ductile iron grades 65-45-12 and 80-55-06 — for hydraulic housing and valve body castings; cutting speed 150-220 m/min. Material selection significantly affects insert grade, cutting parameters, and coolant strategy — Euroturn application engineering support is recommended for initial process setup on new materials.

Euroturn 6/52 foundation and installation requirements: (1) Machine weight 25,000 kg requires minimum 6,500 kg/m² floor slab bearing capacity in the machine footprint — typically a 300-350 mm thick reinforced concrete slab per structural engineer specification; (2) Machine is installed on leveling mounts or epoxy grouted sole plates per Euroturn installation drawing; (3) Electrical: 400 VAC 3-phase, 80-100 kVA supply for machine + bar feeder + chip conveyor; (4) Compressed air: 6-7 bar, 500 L/min peak for all machine pneumatics; (5) Coolant drainage: 150 mm floor drain with sediment trap in machine foundation area; (6) Overhead clearance: 4.0 meters minimum for bar loading and maintenance crane access; (7) Total cell footprint: 50-70 square meters including 4-5 meter bar feeder, chip conveyor, and 1.5 meter access clearances on all service sides; (8) Fork truck or overhead crane rated 8,000 kg minimum for machine installation and major maintenance; (9) Vibration isolation recommended if installed near stamping presses or other high-vibration equipment.

The Euroturn 6/52 back-working attachment enables the following operations on the parted-off end of the bar: (1) Back facing — finish facing of the cutoff end surface to achieve flatness required for sealing faces on hydraulic fitting bodies; (2) Center drilling — producing center hole on the back face for downstream between-centers turning or grinding operations; (3) Chamfering — deburring and chamfering of the cutoff end edge; (4) Back drilling — drilling axial holes from the rear face (separate from front-face bore produced in the main cycle); (5) Back threading — tapping or thread milling of rear axial threads; (6) Back boring — enlarging or finishing a rear axial bore to tighter tolerance than achievable in the main cycle. The back-working cycle operates simultaneously with the main spindle cycle — the 6/52 processes a new bar segment in the main cycle while the back-working attachment processes the previously cut-off part. This parallel operation does not add to the total cycle time if back-working operations can be completed within the main cycle time window.