
Extraction and processing of gravel and natural stone, concrete production, transport and handling services in the Emmental region

Kieswerk Stucki AG
Linden (Gridenbühl) · Schangnau (Kemmerizopfen) · Unterlangenegg (Zulgport) · Röthenbach im EmmentalNew on Amplifa
About Kieswerk Stucki AG
Kieswerk Stucki AG, based in Linden (BE), operates gravel and rock extraction sites in the Emmental region as well as the Gridenbühl gravel and concrete plant. At the plant, round gravel and sand are washed, screened and classified; surplus material is processed into crushed sand, chippings and crushed stone in the jaw crusher and impact mill. In the Kemmerizopfen quarry in Schangnau, Alpine limestone of the Schrattenfluh formation is extracted and processed into natural stone, rubble stones, gabion stones, marl and frost-resistant unbound mixtures (UG 0/45). At the concrete plant in Linden, concretes according to SN EN 206 (incl. SCC concrete), transport mortars made from natural sand and SFB liquid soil are produced; recycled material from concrete demolition is processed with a concrete crusher and air classifier. In addition, the company manufactures stone baskets (gabions), ashlar and concrete block stones, trough fountains and gabion garden grills, and operates its own workshop with a metalworking shop. With a transport fleet including a concrete pump, telescopic conveyor belt, crane vehicles and heavy transport, deliveries are made all the way to the construction site.
- Site
- Linden
- Processes
- Gravel extraction, Rock extraction by blasting and pre-crushing with hydraulic hammer, Washing, screening and classifying of aggregates (processing of round material), Crushing of material (crushed sand, grit, crushed stone), Concrete production according to standard SN EN 206 (certified and non-certified grades, SCC, Transport mortar production exclusively with natural sand (normal and screed mortar), Recycled material and secondary material processing (concrete demolition, construction waste,, Production of ashlar and concrete block stones (dressed on all sides, sawn on up to 4 sides).
- Materials
- Gravel (round gravel 4-50mm), Sand (mason's sand 0-1, max. 4mm), Crushed sand (up to 3mm), Grit (winter grit 3-8mm), Crushed stone (gabion stones 60-80, 80-150), Alpine limestone (Schrattenfluh), Granite (ashlar stones), Kemmeri marl 0-22mm
- Certificates
- Certificate concrete production (SN EN 206), Certificate aggregates for concrete, Certificate/declaration of performance UG 0/45 (SN EN 13242, NB 2115), AAR testing concrete, Declaration of performance UG 0/45 (SN EN 13242, NB 2115 SÜGB), ISO 9001
- Industries
- Structural and civil engineering, Road and path construction, Gardening and landscaping, Agriculture, Municipalities and cantons
- 01
Gravel and rock prospecting (drillings, excavator trenches)
- 02
Topsoil stripping and intermediate storage of humus
- 03
Gravel extraction with excavator/dozer or blasting and hydraulic hammer
- 04
Processing: washing, screening, classifying
- 05
Crushing in jaw crusher and impact mill
- 06
Concrete and mortar production according to SN EN 206
- 07
Recycling processing (concrete crusher, air classifier)
- 08
Transport and handling up to the construction site
- 09
Reclamation of the extraction sites
Construction materials and processes
Unbound mixture UG 0/45
Frost-resistant rock mixture according to SN EN 13242 for foundation and subgrade work in civil and road engineering.
Concrete according to SN EN 206
Certified and non-certified grades incl. SCC concrete and SFB liquid soil for structural and civil engineering.
Round gravel 4-50 mm
Washed, classified aggregate as a single component or gravel mixture for concrete and construction work.
Sand (mason's sand 0-1, crushed sand up to 3 mm)
Round or crushed material as mortar, concrete and finishing aggregate.
Winter grit 3-8 mm
Crushed rock aggregate for winter maintenance and surface treatments in road construction.
Gabion stones 60-80 / 80-150
Crushed stone from Alpine limestone as drainage and fill material for stone baskets and landscaping.
Alpine limestone (Schrattenfluh)
Base rock of the Kemmerizopfen quarry for natural stone, rubble stones and marl.
Kemmeri marl 0-22 mm
Natural road-building material with rapid setting for path and surface areas.
Ashlar stones (Alpine limestone, granite)
Natural stones dressed on all sides, sawn on up to 4 sides, for walls and landscaping.
Recycled material (concrete demolition)
Processed concrete demolition waste as a secondary construction material.
Chemmeri lime / lime fertiliser
Fine material from processing used as agricultural fertiliser.
Locations

Gridenbühl gravel and concrete plant, 3673 Linden
CHGravel and concrete plant, recycling, administration, workshop
- Materials
- Gravel, sand, grit, crushed stone, concrete, mortar, recycled material
- Washing plant
- Screening machines
- Crushing plant/jaw crusher
- Impact mill
- Concrete plant
- Air classifier
- Concrete crusher
- Concrete pump (28 m, up to 50 m³/h)
- Truck mixer with telescopic conveyor belt (5-axle)
- Truck-mounted crane (2, 13/17 m, up to 4.5 t)
- Brake test bench

Kemmerizopfen quarry, 6197 Schangnau
CHRock extraction and processing of Alpine limestone (since 2013)
- Materials
- Alpine limestone, crushed stone, marl, UG 0/45
- Crushing plant/jaw crusher
- Impact mill
- Hydraulic hammer
- Excavator
- Dozer

Zulgport gravel extraction site, 3614 Unterlangenegg
CHGravel extraction
- Materials
- Gravel, sand
- Excavator
- Dozer
Steinkorb Kemmerizopfen, 3538 Röthenbach im Emmental
CHManufacture and sales of stone baskets/gabions
- Materials
- Alpine limestone, crushed stone, galvanised steel wire
Products






Inside the production







Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Gravel extractionRaw material extraction | – | – | – | – | gravel, sand |
| Rock extraction by blasting and pre-crushing with hydraulic hammerRaw material extraction | – | – | – | – | Alpine limestone, rock |
| Washing, screening and classifying of aggregates (processing of round material)Processing | – | – | – | – | gravel, sand, round gravel, mason's sand, wall gravel |
| Crushing of material (crushed sand, grit, crushed stone)Processing | – | – | – | – | Alpine limestone, oversize grain, rock |
| Concrete production according to standard SN EN 206 (certified and non-certified grades, SCCConcrete | – | – | – | – | concrete, SCC concrete, SFB liquid soil |
| Transport mortar production exclusively with natural sand (normal and screed mortar)Concrete | – | – | – | – | mortar, natural sand |
| Recycled material and secondary material processing (concrete demolition, construction waste,Recycling | – | – | – | – | concrete demolition waste, construction waste |
| Production of ashlar and concrete block stones (dressed on all sides, sawn on up to 4 sides).Stone processing | – | – | – | – | Alpine limestone, granite, concrete |
| Manufacture of stone baskets/gabions (aluminium-galvanised or weathering brown, machine-filled andAssembly | – | – | – | – | Alpine limestone, crushed stone, cobbles, galvanised steel wire |
| Production of trough fountains, fountain pillars and gabion garden grills made of concrete (hot-dipConcrete | – | 3100mm × 900mm × 400mm | 900kg | – | concrete, stainless steel, stainless steel, plastic |
| Metalworking shop: superstructures, constructions, welding repairs, repair of worn attachment toolsJoining | – | – | – | – | steel |
| Service and repair workshop for trucks and construction machinery, up to readiness for inspectionAssembly | – | – | – | – | – |
| Transport services: dump trucks, tipping semi-trailers (40to, 28m3), silo trucks (26to, 9m3), truckLogistics | – | – | 40 to | – | gravel, concrete, sand, bulky goods |
| Material handling with truck mixer pump/concrete pump (28m reach, 4-part boom, up to 50m3/h).Logistics | – | – | 4,5 to | – | concrete, gravel, sand |
| Skip service (roll-off and WELAKI skips) for construction waste, excavation and bulky goodsLogistics | – | – | – | – | construction waste, excavated material, bulky goods |
| Delivery of natural stone, rubble stones (up to 500mm), gabion stones 60-80/80-150, crushed stone.Building materials | – | 500mm | – | – | Alpine limestone, marl, granite, Unbound mixture 0/45 |
21 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Crushing plant/jaw crusher | – | – | – | – | Gravel plant Gridenbühl, Linden / Kemmerizopfen quarry |
| Impact mill | – | – | – | – | Gridenbühl gravel plant / Kemmerizopfen quarry |
| Washing plant | – | – | – | – | Gridenbühl gravel plant, Linden |
| Screening machines | – | – | – | – | Gridenbühl gravel plant, Linden |
| Concrete plant | – | – | – | – | Gridenbühl gravel plant, Linden |
| Air classifier (recycling processing) | – | – | – | – | Gridenbühl gravel plant, Linden |
| Concrete crusher | – | – | – | – | Gridenbühl gravel plant, Linden |
| Hydraulic hammer | – | – | – | – | Quarry/gravel extraction |
| Excavator | – | – | – | – | Gravel/rock extraction sites |
| Dozer | – | – | – | – | Gravel extraction |
| Wheel loader | – | – | – | – | – |
| Truck mixer pump/concrete pump | – | 1 (operati | 28 metre reach, 4-part boom, up to 50 m3/h conveying capacity | – | Gridenbühl |
| Truck mixer with telescopic conveyor belt (5-axle) | – | – | 16m reach, 5m telescopic range, up to 9m height difference | – | Gridenbühl |
| Truck-mounted crane | – | 2 | Reaches of 13 resp. 17 metres, loads up to 4,5 to | – | Gridenbühl |
| Tipping semi-trailer | – | – | Gross weight 40 to, load volume 28 m3 | – | – |
| Silo truck | – | – | Gross weight 26 to, load volume 9 m3 | – | – |
| Truck mixer | – | – | Gross weight 26-40 to, load volume 6-9.50 m3 | – | – |
| 4-axle spreader | – | – | Materials up to grain size 200mm | – | – |
| Deep-bed trailer/low-loader trailer (heavy transports) | – | – | Loads up to 35 tonnes | – | – |
| Hook lift system (roll-off and WELAKI skip system) | – | – | – | – | – |
| Brake test bench | – | – | – | – | Gridenbühl workshop |
Additional services
Quality and certificates
Concrete production and aggregates are certified; certified concrete grades are periodically tested for grain composition, compressive strength, special properties and yield. A WPK (factory production control) officer supervises the in-house production control, complemented by AAR testing of the concrete.
| Evidence | Gridenbühl gravel and concrete plant, 3673 Linden |
|---|---|
| Certificate concrete production (SN EN 206) | |
| Certificate aggregates for concrete | |
| Declaration of performance UG 0/45 (SN EN 13242, NB 2115 SÜGB) | |
| AAR testing concrete | |
| ISO 9001 |
History
- 2013
The Kemmerizopfen quarry in Schangnau is taken over by Kieswerk Stucki AG.