Machine park – 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.

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The key figures · Contract manufacturing 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.

50 t Max. part weight 2 × 25-t crane

Ø 4,800 mm Turning diameter Feichter vertical lathe

26 m Gantry-milling travel Zayer Thera W

200 mm Flame-cut thickness Oxy-fuel · 20-m format

1,000 t Press-brake force Weinbrenner

14,000 m² Production area Lorch plant

One machine park · heavy parts up to 50 t · all in-house

Oxy-fuel pipe cutting as tube laser alternative – flame cutting line for large steel parts, Bock Maschinenbau Lorch — Oxy-fuel cutting line for large structural steel parts and Hardox in contract manufacturing

CNC 3D Plasma Pipe Cutting in Action – Bock Maschinenbau Lorch — CNC 3D Plasma Pipe Cutting in Action

Sertom 3-roll plate rolling machine rolling and forming steel plate up to Ø 8,000 mm and 120 mm thick – cold forming in structural steelwork — Sertom plate rolling machine · up to Ø 8,000 mm · up to 120 mm

Weinbrenner press brake – 1,000 t pressing force, 6,100 mm length – cold forming of steel sheet in metal fabrication and steel construction — Weinbrenner press brake · 1,000 t · 6,100 mm

Vertical turning and large-part machining including painting and final assembly at Bock Maschinenbau — Vertical turning as part of complete manufacturing: welding, turning, milling, shot blasting and painting

CNC portal milling machine and XXL vertical lathe with 4,800 mm turning diameter at Bock Maschinenbau in Lorch — Portal and vertical lathe machinery for components up to 4,800 mm diameter and 50 t

Soraluce traveling-column milling center, contract manufacturing – milling cutters and tool storage – with 20,000 mm, 4,000 mm and 1,600 mm of travel — Soraluce – traveling-column milling center, contract manufacturing

Manual MAG welding on a heavy machine frame in structural steel fabrication at Bock Maschinenbau — Certified manual MAG welding on heavy machine frames and steel structures to DIN EN 1090

Overhead crane lifting a crane girder during assembly in the production hall – heavy-load handling at Bock Maschinenbau GmbH Lorch — Overhead crane assembly – crane girder in heavy-load handling in Lorch

Large metal cylinder being turned on the vertical lathe with 4.8 m diameter capacity at Bock Maschinenbau — Large metal cylinder contract turning on the 4.8 m diameter vertical lathe at Bock Maschinenbau

XXL industrial spray booth – machine frame wet painting, surface technology and corrosion protection at Bock Maschinenbau Lorch — XXL spray booth machine frame painting

C5-M High corrosion protection – wet paint industrial coating for large parts in heavy steel fabrication at Bock Maschinenbau — C5-M high wet coating large parts

Large-part turning as part of a full manufacturing service from sheet cutting to painting at Bock Maschinenbau — Complete manufacturing service: sheet cutting, welding, turning, shot blasting and painting under one roof

Machine group · Cutting

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°

Messer Omnimat HT-L CNC plasma cutting machine with HPR 400 system at Bock Maschinenbau in Lorch

Messer · Omnimat HT-L 5000

CNC plasma cutting system

Underwater plasma cutting for clean contours with minimal distortion — including bevel cuts ±45° for weld-ready edges.

SteelStainless steelHardox

Table 8,000 × 2,500 mm · up to 60 mm · plasma source HPR 400

Oxy-fuel pipe cutting as tube laser alternative – flame cutting line for large steel parts, Bock Maschinenbau Lorch

CNC flame cutting system

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.

SteelHardoxS1100

20,000 × 3,500 mm · up to 200 mm · bevels ±45°

MEBA DGA 400 automatic bandsaw – cut-to-length sawing of tubes, beams and sections up to Ø 406 mm in steel and metal construction

Meba · CNC

Sawing centre

Fully automatic sawing of tubes, profiles and girders straight from our own material store — fast, dimensionally accurate, economical.

TubesProfilesGirders

Sawing · Drilling · Milling · Punching

Oxy-fuel pipe cutting of thick-walled steel tube — a tube laser alternative, Bock Maschinenbau Lorch, Germany

Zinser · copy flame cutting

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.

Solid steelHardoxS1100

up to 50 mm wall thickness · 2 torches simultaneously

3D plasma pipe cutting with bevel cut – Zinser plasma machine, steel fabrication at Bock Maschinenbau Lorch

Zinser · 3D plasma

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.

SteelStainless steelHardox

up to 30 mm wall thickness · 3-axis CNC

Machine group · Forming

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 · Ø up to 8,000 mm · up to 120 mm plate thickness

Press brake for heavy plate bending – steel construction contract manufacturing in Germany, Bock Maschinenbau Lorch

Weinbrenner

Hydraulic press brake

Die bending of large plates with high repeat accuracy — dimensionally accurate and reproducible for single part and series alike.

SteelStainless steelHardox

1,000 t press force · 6,100 mm length

Sertom 3-roll plate rolling machine rolling and forming steel plate up to Ø 8,000 mm and 120 mm thick – cold forming in structural steelwork

Davi · 3-roll

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.

SteelStainless steelHardox

Ø up to 8,000 mm · up to 120 mm · three-point bending

Machine group · Welding technology

Welding technology to EXC3

Joined to DIN EN 1090-2 EXC3: MAG, TIG and automated submerged-arc welding — supported by a 2 × 25-t crane system for parts up to 50 t.

EXC3 · EN ISO 3834-2 · up to 50 t

Production gallery of machinery manufacturing: MAG, TIG and submerged arc welding (SAW) to EN 1090-2 EXC3 at Bock in Lorch

Oerlikon · ESAB · Lorch · Böhler

Welding technology & assemblies

Certified welding in all common processes — from the assembly to the complete heavy-duty structure up to 50 t.

135 MAG141 WIG121 UP

DIN EN 1090-2 EXC3 · EN ISO 3834-2

Submerged arc welding machine installation for fully mechanised welding of heavy structures at Bock Maschinenbau

ESAB · SAW column

Submerged-arc welding column

Automated submerged-arc welding for deep, high-strength seams on heavy parts — long seam runs in one pass, reproducible.

SteelFine-grainS1100

7 m reach · 1,250 A · up to 50 t

Overhead crane lifting a crane girder during assembly in the production hall – heavy-load handling at Bock Maschinenbau GmbH Lorch

Heavy-load handling

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.

XXL partsLoading

2 × 25 t · up to 50 t part weight

Machine group · Machining

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 130 mm · Ø 4,800 mm · up to 50 t

Gantry column boring mill and CNC milling center for steel components and welded assemblies, Bock Maschinenbau Lorch

Zayer · Thera W 26000 + 16000

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.

Gantry millingSwivel headXXL

2 machines · X 26,000 × Y 5,000 × Z 3,250 mm · up to 50 t

Soraluce FR CNC milling center with 20,000 mm travel for large-part machining at Bock Maschinenbau Lorch

Soraluce · FR 20,000

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.

Travelling columnSwivel headRotary table 2.5 × 2.5 m

Travel 20,000 × 4,000 × 1,600 mm · up to 50 t

TOS-Varnsdorf WHN 13 CNC horizontal boring mill with Ø 130 mm spindle and travels X 3,500 × Y 2,500 × Z 1,200 mm

TOS-Varnsdorf · 3 × WHN 13 CNC

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.

Boring outRotary table 360°3 machines

Ø 130 mm spindle · X 3,500 × Y 2,500 × Z 1,200 mm

Vertical turning and large-part machining including painting and final assembly at Bock Maschinenbau

Feichter · TOS · Meusser

Turning & Vertical Turning

Vertical turning of large flanges, drums and slewing rings — rotationally symmetric heavy parts up to almost five metres in diameter.

Large flangesSlewing rings

Ø 4,800 mm · 2,400 mm height · up to 50 t

Raboma radial drilling machine – historic machine and its applications in the machine park at Bock Maschinenbau GmbH Lorch

Raboma · Invema · Gamor

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 mmThreads M2–M60Steel · Stainless steel · Hardox

Drilling up to Ø 90 mm · threads M2–M60 · reach up to 3,000 mm

Machine group · Surface

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 Sa 2.5 of large steel components in XXL blast booth 25,000 x 6,000 x 7,000 mm at Bock Maschinenbau Lorch

Large-volume blasting booth

Sandblasting 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.

Sa 2,5Corundum

25 × 7 × 6 m · up to 50 t

XXL industrial paint booth measuring 25,000 x 6,000 x 7,000 mm for large-scale painting to EN ISO 12944 at Bock Maschinenbau

XXL paint booth

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.

EN ISO 129442K-Epoxy

25 × 7 × 6 m · up to 50 t

Machine group · Post-treatment

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

Vibrational stress relief VSR setup as alternative to stress-reducing heat treatment at Bock Maschinenbau GmbH Lorch

VIBMATIC 8000 · vibration stress relief

Vibration stress relief

Reducing residual stresses without a furnace — fast, economical, dimensionally stable. The alternative to stress-relief annealing for welded structures.

VSRwithout heat

Residual-stress reduction · dimensionally stable

Career · These are the machines you work on

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.

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Heavy machining of Hardox steel with boring mill and vertical lathe – CNC large-part milling, Bock Maschinenbau Lorch

Why Bock

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.

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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.

Request a project To our services