--- title: "CNC Machinery – Boring Mill & Vertical Lathe" description: "Portal milling 26 m, vertical lathe Ø 4,800 mm, 1,000 t press brake – CNC large-part machining up to 50 t. Contract manufacturing in Lorch · Stuttgart region." url: "https://bock-gmbh.com/en/machinery/" language: "en" index: "https://bock-gmbh.com/en/llms.txt" --- # Machinery – CNC large-part machining up to 50 t Three CNC large-machining centres up to 26 m, vertical turning up to Ø 4,800 mm, 1,000-⁠t press brake — the machines that heavy parts are made on. All under one roof in Lorch. ## Does your part fit us? These six limit values answer the most important question first. If your part falls within them, we manufacture it completely in-house — from flame-cut blank to the painted, assembly-ready assembly. One machine park · heavy parts up to 50 t · all in-house XXL shot blast booth measuring 25,000 x 6,000 x 7,000 mm for large-part surface preparation to Sa 2.5 Weinbrenner – press brake die storage Weinbrenner – press braking up to 1,000 t MEBA – saw cutting of tubes and sections in contract manufacturing Zayer gantry milling machine with boring mill in the machine park Flame straightening of welded structures for dimensional accuracy in large steel fabrication Welding system – submerged arc welding to DIN EN 1090-2 EXC3 at Bock Maschinenbau Zinser 4125 CNC underwater plasma cutter, 8,000 × 2,500 mm cutting area Bolted bearing bracket on a welded steel structure Scharringhausen – press brake bending up to 550 t Soraluce milling center integrated in the full manufacturing chain for custom machinery Kolb HK 80 – radial drilling machine (1,600 mm arm reach) Blast booth with filter system – shot blasting to Sa 2,5 in contract manufacturing at Bock Maschinenbau Complete machining of special purpose machinery parts up to 50 t ## Cutting & blanking From raw steel to the exact contour: underwater plasma for clean edges, large-format oxy-fuel flame cutting up to 200 mm and fully automatic sawing from our own material store. 20,000 × 3,500 mm · up to 200 mm · bevels ±45° ### CNC plasma cutting system Underwater plasma cutting for clean contours with minimal distortion — including bevel cuts ±45° for weld-ready edges. 20,000 × 3,500 mm · up to 60 mm · plasma source HPR 400 ### Large-format oxy-fuel flame cutting Flame-cut blanks on a 20-metre format — where laser and plasma long since give up. Thickest steel, exact contour, automatic bevel cutting. ### Sawing centre Fully automatic sawing of tubes, profiles and girders straight from our own material store — fast, dimensionally accurate, economical. Band saw + 3 circular saws · Ø up to 406 mm · miter up to 90° ### Oxy-fuel tube cutting Thick-walled tubes and hollow girders from solid steel — two torches at once for mitre and saddle cuts, where no tube laser can reach. up to 50 mm wall thickness · 2 torches simultaneously ### 3D plasma tube cutting CNC-controlled 3-axis plasma system for tubes and hollow profiles — 3D cut-outs, notches and mitre cuts in one operation, without intermediate steps. Where tube lasers reach their limits. up to 30 mm wall thickness · 3-axis CNC ## Forming Flat plate becomes shape: die bending on the 1,000-⁠t press brake and heavy plate rolling for cylinders, cones and special shapes. 1,000 t press force · up to Ø 8,000 mm · up to 120 mm plate thickness ### Hydraulic press brake Die bending of large plates with high repeat accuracy — dimensionally accurate and reproducible for single part and series alike. 1,000 t press force · 6,100 mm length ### Plate rolling & round bending Heavy round bending for cylinders, cones and special shapes — down to thick-walled tubes with small diameter in the three-point bending process. up to Ø 8,000 mm · up to 120 mm plate thickness · three-point bending ## Welding technology to EXC3 Joined to DIN EN 1090-2 EXC3: MAG and automated submerged-arc welding certified, TIG by qualified welders — supported by a 2 × 25-⁠t crane system for parts up to 50 t. EXC3 · EN ISO 3834-2 · up to 50 t ### Welding technology & assemblies Certified welding in all common processes — from the assembly to the complete heavy-duty structure up to 50 t. DIN EN 1090-2 EXC3 · EN ISO 3834-2 ### Submerged-arc welding column Automated submerged-arc welding for deep, high-strength seams on heavy parts — long seam runs in one pass, reproducible. 3 submerged-arc columns · up to 7 m reach · 1,250 A ### Hall crane 2 × 25 t Two coupled 25-⁠tonne cranes lift, turn and position parts that others have to make do without — safely through the entire production. 2 × 25 t · up to 50 t part weight ## Large-part machining — the XXL class Here lies the heart of the machine park: two Zayer gantry machining centres up to 26 m travel, one Soraluce travelling-column milling machine with 20 m travel, three CNC horizontal boring mills TOS-Varnsdorf WHN 13 with rotary table and a vertical turning lathe up to Ø 4,800 mm — for heavy parts up to 50 t, dimensionally accurate and reproducible. The machine park is complemented by a stock of tools and special tools grown over decades — long boring and boring-out bars, angle milling heads, special milling cutters and thread-cutting tools —, which makes almost any geometry machinable. Gantry milling 26 m · 3 × boring mill · Ø 4,800 mm · up to 50 t ### Large parts up to 26 metres — two gantry milling machines Two Zayer Thera W gantry milling machines with 30° swivel milling head and portal supported on both sides — up to 26 m travel for the largest and longest parts, milled dimensionally accurate in one setup. 2 machines · Travel X up to 26,000 × Y 5,000 × Z 3,250 mm · up to 50 t ### Travelling-column milling & boring centre Travelling-column machine with swivelling milling head, rotary table and 20 m travel — the upward-open working area knows no gantry height limit and takes on bulky heavy parts freely by crane: milling, drilling and boring in one setup. Travel 20,000 × 4,000 × 1,600 mm · up to 50 t ### Three CNC horizontal boring mills with rotary table Three identical TOS-Varnsdorf WHN 13 CNC with Ø 130 mm boring spindle and rotary table — drilling, boring, milling and thread cutting in one setup. Parallel capacity for precise bores and positional references on heavy parts. Ø 130 mm spindle · Travel X 3,500 × Y 2,500 × Z 1,200 mm ### Turning & Vertical Turning Vertical turning of large flanges, drums and slewing rings — rotationally symmetric heavy parts up to almost five metres in diameter. Ø 4,800 mm · 2,400 mm height · up to 25 t ### Radial drilling & thread cutting Three radial drilling machines up to 3 m reach and one tapping automat — hole patterns, bores and threads up to M60 on large parts, freely positioned via the swivel arm. Drilling up to Ø 90 mm · threads M2–M60 · reach up to 3,000 mm Whatever is clamped here leaves the hall fully machined. ## Surface & corrosion protection We give the final touch in-house: blasting up to Sa 2,5 and industrial coating to EN ISO 12944 in the 25-metre large-volume booth — best priming and corrosion-protection conditions for heavy parts up to 50 t. Sa 2,5 · EN ISO 12944 · booth 25 × 7 × 6 m ### Shot blasting booth 25 m Blasting up to Sa 2,5 in the 25-metre large-volume booth — optimal priming base before every coating, also for heavy parts up to 50 t. 25 × 7 × 6 m · up to 50 t ### Industrial paint booth 25 m Industrial coating to EN ISO 12944 for the largest steel parts — blasting and painting from one hand, one contact person. ## Post-treatment & stress relieving After welding we stabilise the parts: vibration stress relief reduces residual stresses without a furnace, flame straightening corrects thermal distortion — both in-house, before final machining. VSR · flame straightening · without stress-relief annealing ### Vibration stress relief Reducing residual stresses without a furnace — fast, economical, dimensionally stable. The alternative to stress-relief annealing for welded structures. Residual-stress reduction · dimensionally stable ## Big iron. Real craftsmanship. Large-part machining on a Soraluce. Vertical turning up to four metres. Certified welding to EXC3. Anyone who starts at Bock works on machines you won't find on every corner — in a team that knows its craft, with modern equipment and parts you can be proud of. ## One machine park. Full responsibility. ### All under one roof From blanking to coating without an external supplier — one responsibility, one contact person. ### EXC3-certified DIN EN 1090-2 & EN ISO 3834-2 — tested weld quality for load-bearing structures. ### Heavy load up to 50 t 2 × 25-⁠t crane and machines for part dimensions that others have to make do without. ### Continuously modernised A continuously renewed machine park — from the Messer plasma system to the Soraluce FR. ### Over 20 machines Seven large CNC machining centres plus the full spectrum below — from the 26-⁠m gantry to the conventional lathe. ## Our company presentation Machinery, capacities and service overview compact as a PDF – ideal for your project planning and enquiry. PDF · EN · 7.7 MB ## Your part — we have the machine for it. Send us your drawing or a short enquiry. You receive a non-binding quote — and a contact person who knows our machines.