
Complete plants for the production of concrete blocks, paving stones, pipes, manholes and large-format precast concrete parts

HESS Group GmbH
Burbach-Wahlbach · Limburg an der Lahn · RegensburgNew on Amplifa
About the HESS Group
The HESS Group, part of the TOPWERK Group, develops and builds complete plants for the production of concrete blocks and paving stones – from system design and layout through machinery, material flow and automation to commissioning. The group comprises the brands HESS (block machines and mixing plants), PRINZING PFEIFFER (plants for pipes, manholes and precast concrete parts, founded 1862) and SR SCHINDLER (finishing and packaging plants for paving and slabs). Production is carried out using wet-cast and dry-cast processes with concrete, lightweight concrete and self-compacting concrete (SCC). The plants serve industries such as concrete block and paving stone manufacturing, pipe and manhole construction, wastewater treatment, drainage, agriculture, and road and infrastructure construction. Locations exist in Burbach-Wahlbach, Limburg an der Lahn and Regensburg; customers in over 70 countries are served through a global network of representatives. The service offering includes maintenance, spare parts, retrofit and plant optimization.
- Site
- Burbach-Wahlbach
- Processes
- Complete plants for concrete blocks and paving (system design, machines, material flow, automation,, RH 2000-4 / RH 1500-4 / RH 1450 / RH 600-3 / RH 500-3 / BF 80-2 H, Batching and Mixing Plants (mixing plants), Surface Treatment Systems / Inline QC, Service, retrofit, modernization of existing plants, ZELUS – automatic production line for large-format concrete parts (wet-cast or dry-cast), Splitting of concrete blocks (block, wall and hollow blocks, palisades, block steps), Calibrating (milling off manufacturing tolerances, dry/wet operation)
- Materials
- Concrete, Lightweight concrete, Self-compacting concrete (SCC), Self-compacting concrete, Wet-Cast / Dry-Cast
- Founded
- 1862 (PRIN
- Employees
- 400+ (HESS Group,
- Industries
- Concrete block and paving stone manufacturing, Pipes, manholes and precast concrete parts, Wastewater treatment and rainwater utilization, Cable protection (energy/telecommunications), Drainage, Agriculture (slatted flooring)
- 01
Requirements analysis
- 02
System design & layout
- 03
Engineering (machines, material flow, automation)
- 04
Manufacturing and delivery
- 05
Assembly and commissioning
- 06
Service, retrofit and spare parts
Materials and Processes
Concrete
Base material for block machines, precast and finishing plants.
Self-compacting concrete
Available for the ZELUS production line as an SCC version, with precise concrete dosing into large-format molds.
Lightweight concrete
Can be processed when vertically milling wall and chimney blocks.
Wet-Cast / Dry-Cast
Processes of the ZELUS production line for large-format concrete parts, depending on the design.
Locations

Burbach-Wahlbach
DEHESS Group – Headquarters and location
- Materials
- Concrete
- Block machines RH 2000-4, RH 1500-4, RH 1450, RH 600-3, RH 500-3
- BF 80-2 H
- Batching and mixing plants
- Surface systems and inline QC

Limburg an der Lahn
DEPRINZING PFEIFFER – Location
- Part weight / size
- up to 10,000 kg product weight (ZELUS 600/30)
- Materials
- Concrete, SCC
- ZELUS 400/25, 500/20, 600/30
- TORNADO
- ATLAS
- BLIZZARD
- VARIANT
- MISTRAL
- PRIMUSS 2.0
- Radial press RP
- Molds and formwork
- Test roads

Regensburg
DESR SCHINDLER – Location
- Part weight / size
- Product thickness up to 400 mm
- Materials
- Concrete, lightweight concrete
- Splitting machines 800/1200
- Calibrating machines 850/1200
- Grinding machines up to 10 stations
- Chamfering machine
- Bushing/aging machine 1050/1200
- Edge breaker
- Curling machine 850/1200
- Blasting machine 850/1200
- Coating line (IR/UV)
- Vertical milling machine
- Stone calibrating milling machine
- Laboratory press
- Hermetic press UNI
- BZ 844
Machines and Plants






Inside the production





Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Complete plants for concrete blocks and paving (system design, machines, material flow, automation,Casting | – | – | – | – | Concrete |
| RH 2000-4 / RH 1500-4 / RH 1450 / RH 600-3 / RH 500-3 / BF 80-2 HCasting | – | – | – | – | Concrete |
| Batching and Mixing Plants (mixing plants)Engineering | – | – | – | – | Concrete |
| Surface Treatment Systems / Inline QCSurface | – | – | – | – | Concrete |
| Service, retrofit, modernization of existing plantsEngineering | – | – | – | – | – |
| ZELUS – automatic production line for large-format concrete parts (wet-cast or dry-cast)Casting | – | – | 10,000 kg (ZELUS 600/30) | – | Concrete, SCC concrete (self-compacting concrete) |
| Splitting of concrete blocks (block, wall and hollow blocks, palisades, block steps)Forming | – | 1,200 mm (splitting width) × 410 mm (pass-through height) | – | – | Concrete |
| Calibrating (milling off manufacturing tolerances, dry/wet operation)Machining | – | 1,200 mm × 400 mm (product thickness) | – | – | Concrete |
| Bushing and aging (paving stones, wall blocks, block steps, palisades)Surface | – | 1,200 mm × 350 mm (product thickness) | – | – | Concrete |
| Edge breaking (post-processing of split edges with rotating chains)Surface | – | – | – | – | Concrete |
| Grinding (paving and slabs, up to 10 stations, dry/wet operation)Surface | – | 1,200 mm × 400 mm (product thickness) | – | – | Concrete |
| Chamfering (chamfer milling via diamond milling stations)Machining | – | – | – | – | Concrete |
| Curling (processing with rotating brush rollers)Surface | – | 1,200 mm × 350 mm (product thickness) | – | – | Concrete |
| Blasting (removing cement to expose the aggregate)Surface | – | 1,200 mm × 400 mm (product thickness) | – | – | Concrete |
| Coating / impregnating (IR/UV stations, spraying or rolling)Surface | – | – | – | – | Concrete |
| Vertical milling (two-sided milling/calibrating of wall and chimney blocks)Machining | – | – | – | – | Concrete, Lightweight concrete |
| Stone calibrating milling machine for laboratories (calibrating test products for compressive andTesting | – | 650 mm × 500 mm × 320 mm | – | – | Concrete |
| Production of pipes, manholes and precast parts made of concrete (TORNADO, ATLAS, BLIZZARD, VARIANT,Casting | – | – | – | – | Concrete |
| Hermetic presses (production of hermetic slabs)Forming | – | – | – | – | Concrete |
| Printing (IR/UV printing on concrete slabs)Surface | – | – | – | – | Concrete |
| Handling and packaging of paving and slabsAssembly | – | – | – | – | Concrete |
| Molds and formwork for precast concrete partsEngineering | – | – | – | – | – |
33 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Block machine RH 2000-4 | HESS RH 2000-4 | – | – | – | – |
| Block machine RH 1500-4 | HESS RH 1500-4 | – | – | – | – |
| Block machine RH 1450 | HESS RH 1450 | – | – | – | – |
| Block machine RH 600-3 | HESS RH 600-3 | – | – | – | – |
| Block machine RH 500-3 | HESS RH 500-3 | – | – | – | – |
| Machine BF 80-2 H | HESS BF 80-2 H | – | – | – | – |
| Batching and mixing plant | HESS | – | – | – | – |
| Production line for large-format concrete parts (wet-cast/dry-cast) | PRINZING PFEIFFER ZELUS 400/25 | – | 4,100 x 1,300 mm | – | – |
| Production line for large-format concrete parts (wet-cast/dry-cast) | PRINZING PFEIFFER ZELUS 500/20 | – | 4,700 x 3,000 mm | – | – |
| Production line for large-format concrete parts (wet-cast/dry-cast) | PRINZING PFEIFFER ZELUS 600/30 | – | 6,000 x 3,000 mm | – | – |
| Splitting machine | SR SCHINDLER 800 | – | Splitting width 800 mm, pass-through height 410 mm | – | – |
| Splitting machine | SR SCHINDLER 1200 | – | Splitting width 1,200 mm, pass-through height 410 mm | – | – |
| Calibrating machine | SR SCHINDLER 850 | – | Working width 850 mm | – | – |
| Calibrating machine | SR SCHINDLER 1200 | – | Working width 1,200 mm | – | – |
| Grinding machine (up to 10 stations) | SR SCHINDLER 850/1200 | – | Working width 850 mm/1,200 mm | – | – |
| Chamfering machine | SR SCHINDLER | – | – | – | – |
| Bushing/aging machine (1–3 aggregates) | SR SCHINDLER 1050/1200 | – | Working width 1,050 mm/1,200 mm | – | – |
| Edge breaker (modular design 4/8/12 edges) | SR SCHINDLER | – | – | – | – |
| Curling machine (2 processing tunnels) | SR SCHINDLER 850/1200 | – | Working width 850 mm/1,200 mm | – | – |
| Blasting machine (2 or 4 turbines) | SR SCHINDLER 850/1200 | – | Working width 850 mm/1,200 mm | – | – |
| Coating line (IR/UV) | SR SCHINDLER | – | – | – | – |
| Vertical milling machine | SR SCHINDLER | – | – | – | – |
| Stone calibrating milling machine (laboratory) | SR SCHINDLER | – | Concrete blocks up to 500 × 650 × 320 mm, drill cores Ø 160 mm (430 mm high) | – | – |
| Laboratory press | SR SCHINDLER | – | – | – | – |
| Plant for manhole parts in large quantities | PRINZING PFEIFFER TORNADO | – | – | – | – |
| Plant for cable ducts, septic tanks and others | PRINZING PFEIFFER ATLAS | – | – | – | – |
| Plant for drainage channels, slabs and flooring products | PRINZING PFEIFFER BLIZZARD | – | – | – | – |
| Plant for frame gratings and large-format concrete pipes | PRINZING PFEIFFER VARIANT | – | – | – | – |
| Precast concrete plant MISTRAL | PRINZING PFEIFFER MISTRAL | – | – | – | – |
| Precast concrete plant PRIMUSS | PRINZING PFEIFFER PRIMUSS 2.0 | – | – | – | – |
| Radial press | PRINZING PFEIFFER RP | – | – | – | – |
| Hermetic press UNI | SR SCHINDLER UNI | – | – | – | – |
| Multiformat grinding machine BZ 844 / machining center | SR SCHINDLER BZ 844 | – | – | – | – |
Additional services
History
- 1862
PRINZING PFEIFFER: experience through tradition since 1862
HESS Group: over 1,400 completed projects, over 75 years of experience, over 400 team members worldwide
PRINZING PFEIFFER: over 550 successful customer projects, over 100 machines in operation worldwide, over 750 employees at 4 locations in Germany (Blaubeuren, Limburg, Langenhahn, Porta Westfalica)