Bock Maschinenbau GmbH – Special Machinery Construction and Steel Engineering in Lorch

Steel Fabrication &
Contract Manufacturing Germany

Certified welding company & contract manufacturer for steel construction, special machine building and large-part machining — from flame-cut blank to painted welded structure, manufactured to EN 1090-2 EXC3 and delivered throughout Europe.

1963 Founded
100+ Employees
14,000 m² Production area
Welded structures up to 50 t

Two 25-t shop cranes move and join heavy welded assemblies with full process reliability.

40+ material grades

Structural steel S235/S355 · fine-grain up to S1100 · Hardox · stainless 1.4301/1.4571 · pressure-vessel steel P355GH — all with 3.1 inspection certificate to EN 10204.

Machining up to 26 m

Gantry milling machines process large components precisely in a single setup.

EN 1090-2 · EXC3

Certified welding company — EN ISO 3834-2 & AD 2000 HP 0 for pressure vessels.

All from a single source

Flame cutting, turning, milling, drilling, welding, blasting & painting — under one roof.

Made in Germany

Manufacturing at our Lorch site · Ostalbkreis, Stuttgart region — delivery throughout Europe.

60+ Years of Steel Engineering Excellence

Since 1963, we have been a trusted partner for demanding projects in steel construction, special machine building and foundation engineering. With over 100 employees and 14,000 m² of modern production space in Lorch, Germany, we realise projects that others don't dare take on.

  • Certified welding company
  • DIN EN ISO 3834 / EN 1090
  • On-time delivery as our top priority
  • Projects across Europe
Learn more about us
Certified manufacturing plant for steel fabrication and custom machinery production at Bock Maschinenbau

15 industries, one manufacturing partner

From the machine frame and the crane girder to the lock gate: we manufacture welded and machined large components to DIN EN 1090-2 EXC3 — for customers in 15 industrial sectors.

Welded assembly for construction industry in metal fabrication with mechanical machining and painting at Bock Maschinenbau GmbH Lorch

Construction machinery & building materials

Components for construction machinery, mixers and processing plant in wear-resistant steel.

Wear-resistant steel · bulk materials
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XXL cylindrical housing with ribbed bearing flange on the low-loader – process equipment and heavy haulage, Bock Maschinenbau Lorch

Plant, apparatus & vessel construction

Vessels, heat exchangers, rotary kilns and pressure vessels to AD 2000 — welded, turned, coated.

AD 2000 · vessels
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Metal pipe and steel tube in complete manufacturing for heavy-load structures up to 50 t at Bock Maschinenbau

Foundation engineering & drilling

Kelly bars, drill rods, leaders and drilling tools for piling and rotary drilling rigs — welded and machined to drawing.

Drilling technology · mast assemblies
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Show more industries Show less +12
Red-painted machine bed after mechanical CNC milling being transported by heavy-load crane at Bock Maschinenbau GmbH Lorch

Machine tool & press manufacturing

Machine frames, welded frames, milling frames and press tables — welded, stress-relieved and finish-machined.

Frames · bases · tables
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Painted machine and gearbox housing as welded assembly from complete manufacturing at Bock Maschinenbau

Machinery & special machine building

Special machinery assemblies, gearbox housings, ring gears and flywheels — manufactured complete to drawing.

Assemblies · housings · drive parts
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Heavy-load crane construction as steel fabrication for contract manufacturing at Bock Maschinenbau

Crane & lifting technology

Crane bridges, crane girders, lifting beams and rope drums — load-bearing heavy-duty steel components up to 50 t to EN 1090-2 EXC3.

up to 50 t · EXC3
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Welded structure built in contract manufacturing at Bock Maschinenbau GmbH Lorch

Vehicle & transport engineering

Frames, booms, special bodies, transport racks and chassis steelwork in high-strength fine-grain and wear-resistant steel.

Frames · chassis steelwork
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XXL screw conveyor welded structure for bulk material handling in plant engineering at Bock Maschinenbau

Conveying & recycling technology

Screw conveyors, crusher plant components, screening plants and wear plates in wear-resistant steel.

Conveying · wear
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Vertical turning lathe turning and drilling in large-part machining – Bock Maschinenbau, Lorch

Energy & power plant engineering

Support structures, frames and housings in large dimensions for energy and power plant engineering.

Steel fabrication · large dimensions
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Steel pipe flange connection by MAG welding – plant engineering and contract manufacturing of steel assemblies at Bock Maschinenbau

Pipeline, offshore & marine engineering

Flanges, pipe segments and offshore or special containers to EN 1090-2 EXC3.

Pipe · offshore
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Truss girder in steel structure for bridge construction and industrial applications at Bock Maschinenbau

Infrastructure, bridge & tunnel construction

Truss girders, cross members and load-bearing steel structures for infrastructure and bridge construction projects.

Trusses · girders
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Steel construction machine frame welded assembly mechanically machined at Bock Maschinenbau GmbH Lorch

Test rigs & testing technology

Test rigs, vibration frames and heavy machine base frames with high stiffness and dimensional accuracy.

Test rigs · frames
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Heavy-load logistics as plant engineering components supplier at Bock Maschinenbau GmbH Lorch

Materials handling, ports & logistics

Container handling equipment, racking and storage systems as well as components for port and rail logistics.

Handling · storage
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Metal fabrication with large-part machining and surface treatment incl. shot blasting and painting, Bock Maschinenbau

Hydraulic steel structures & water engineering

Lock gates, fish-belly flap gates, weir flaps and dolphins — heavy hydraulic steel structures with corrosion protection to EN ISO 12944.

Locks · weirs
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Industrial plant engineering large vessel in contract manufacturing at Bock Maschinenbau

Plastics technology

Machine frames, conveying equipment and silos for granulate, enclosures and wear parts in wear-resistant steel — steel fabrication for plastics processing.

Frames · wear-resistant steel
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Contract manufacturer portfolio: steel fitting, welding, CNC milling, turning, machining and shot blasting at Bock Maschinenbau GmbH Lorch
Complete Fabrication

Large parts up to 50 t · cutting to coating

Oxy-fuel cutting and CNC plasma cutting of large Hardox plates, format 20,000 × 3,500 mm, at Bock Lorch
Flame Cutting

up to 20 × 3.5 m · 200 mm thick

Plate rolling and press brake bending to 1,000 t for special purpose machinery contract manufacturing — Bock
Forming

Rolling up to Ø 8,000 mm

up to 120 mm thick

Press braking up to 1,000 t

CNC heavy machining – vertical lathe, portal milling and boring mill for heavy parts up to 50 t at Bock Maschinenbau Lorch
Machining

up to 26 m part length

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

to EN 1090-2 EXC3

Shot blasting Sa 2.5 and EN ISO 12944 painting of large steel components up to 50 t in 25 m cabin, Bock Maschinenbau Lorch
Surface Finishing

Blasting & painting up to 25 × 7 × 6 m

CNC milling center with portal and boring mill, 26 m travel distance, at Bock Maschinenbau in Lorch

Our Machinery – Precision at the Highest Level

With state-of-the-art CNC flame cutting systems, CNC large-part machining centres and high-performance press brakes, we manufacture even the most complex steel structures to the highest quality standards.

Explore Machinery
20 + Machines in the parkAll from one source
50 t Max. part weight2 × 25-t overhead crane
Ø 4.800 mm Turning diameter+ 2,400 mm turning height
26 m Portal milling travelIn a single setup
200 mm Flame-cut thickness20 × 3.5 m format
1,000 t Press-brake force+ 550 t second press
25 × 7 × 6 m Blasting & paintingIn-house booth
40 + Material gradesup to S1100 · 3.1 certificate
14,000 m² Production areaLorch site · Stuttgart region
EXC3 Certified weldingEN 1090-2 · ISO 3834-2
AD 2000 HP 0 Pressure-vessel constructionGSI SLV certified
Ø 8.000 mm Plate rolling / bendingØ 300–8,000 · 4–120 mm

Careers at Bock Maschinenbau

We are looking for passionate professionals who want to shape the future of the steel industry with us. Apprenticeships, jobs and internships in Lorch, Baden-Württemberg.

7 open positions

Get in touch

We look forward to your enquiry — a project discussion, a quote or simply a question.

Availability Mon–Thu 07:00 – 17:00
Fri 07:00 – 12:00
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