
Chaudronnerie Savoyarde special molds
Our design office in Marigny-Saint-Marcel develops special moulds for precast concrete. Its patents include a system that positions cast-in openings to ensure a watertight seal.
Mechanised moulds for your precast concrete products
Manhole bases, straight sections, reducing cones, inspection chambers, drainage channels, tanks: fully mechanised moulds, designed for the machine you already have, that demould with no manual intervention, for immediate or delayed demoulding.
- 40 yearsof special moulds for concrete
- 65moulds in the catalogue, all custom-built
- 2 patentspneumatic demoulding and positioning of recesses
- 0manual intervention at demoulding, mechanised mould
- Allmachines, whatever their manufacturer and age
They trust usCRPBemacoStradalAlkernPoint PPlattardBétons Libaud
Find a mould close to yours
All our projects, mould by mould. Filter by market or by demoulding type, open a sheet, and request a mould of that type: your enquiry is pre-filled.
Manhole bases: the complete column with delayed demoulding
Manhole base, straight sections, reducing cones: we design every mould in the manhole column for delayed demoulding. The product cures in a mould that keeps its geometry, then the core retracts and the outer jacket opens mechanically.



Interchangeable coresSeveral benching configurations on the same mould, locked supports, hydraulic recesses.
Half-shells without draftTwo half-shells on a frame, hydraulic opening, locking and demoulding.
Adjustable height and angleOne mould for several product heights, benching with adjustable angle.
Pneumatic cavityRecesses and cavity demoulded by a patented pneumatic system.
CRP500/600 manhole base mould with pneumatic demoulding of the recesses and cavity, built for CRP.
Lego block moulds: how we do it
Interlocking concrete blocks are used to build storage, retaining or partition walls quickly, without mortar, and to make use of surplus concrete from a batching plant. The mould does all the work: clean studs and sockets so the blocks stack plumb.
- A rigid box with opening sidesWelded box, hinged and locked sides to keep faces flat and edges sharp.
- Moulded studs and socketsThe interlocking features are built into the mould, for stacking without shims.
- Casting and liftingFilled from the top, lifting insert cast into the concrete, demoulded the next day by opening the sides.
- Your sizesFull block, half block, capping block: the mould is sized for your products and your handling.



Immediate or delayed, with no manual intervention
Fully mechanised to your specification, our moulds guarantee perfect geometry and smooth, bubble-free walls. The opening outer jacket and the retractable core with even force control eliminate post-casting deformation: a key point for watertight pipes, manholes and culverts.
Immediate demoulding
The mould is released straight away
- On a vibrating table or turnover machine
- Inspection chambers, square manhole bases, traps, draw pits, posts
- Several products per cycle: up to 32 inspection chambers
Delayed demoulding
The product cures in its mould
- Retractable core, outer jacket with hydraulic or manual opening, or trunnion demoulding
- Manhole bases, straight sections, reducing cones, telecom chambers
- Geometry held until curing, for watertight products
All concretes
- Vibrated dry-mix or self-compacting concrete
- Reinforced concrete, with plastic or steel bars
- Fibre-reinforced concrete, steel or structural synthetic fibres
All technologies
- With or without vibration: agitation, vibrating table, vibration built into the mould
- With or without turnover
- With or without draft
All machines
- Pipe machines and manhole machines
- Whatever their origin, manufacturer and age
- Production lines with delayed demoulding
Patented moulds, developed to order
Our design office in Marigny-Saint-Marcel develops highly technical special moulds that are the subject of patent filings.

Patent
Pneumatic demoulding
Recesses and cavities demoulded by a pneumatic system built into the mould, for clean products with no rework.

Patent
Positioning of recesses
Recesses are positioned to guarantee the product is watertight, where it is essential.

R&D
Out-of-the-ordinary projects
Containers, arches, large blocks: prototype moulds, designed with you from your product.
Designed for the machine you already have
Pipe machines, manhole machines, vibrating tables, turnover machines: our moulds fit into your production equipment without changing it. Click on a machine to see the moulds we have already built.

Boilermaking know-how, for 40 years
Design, boilermaking, welding, machining, hydraulics and pneumatics: every mould is designed and built in our workshops, then tested before it leaves.






Marigny-Saint-Marcel
Chaudronnerie Savoyarde: design office and manufacture of special moulds.

Crèvecœur-le-Grand
ALFI Adler head office: moulds, block machines and concrete production lines.
Your existing moulds too
Refurbishment
Straightening, rework of wear parts, overhaul of cylinders and hydraulic or pneumatic circuits.
Modification
New recesses, new height, new core on an existing mould.
Adaptation to a machine
Your mould adapted to a new machine or a new demoulding method.
Commissioning
Workshop tests, then support at your site for the first demoulding.



Three ways to contact us
A special mould is priced from a drawing. Describe your product and your machine, send your drawing directly, or book a call with Jérôme Regourd.
What speeds up pricing
- The dimensioned product drawingRecesses, benching, tolerances.
- The machine that will take the mouldBrand, model, photos if possible.
- The demoulding methodImmediate or delayed, with or without turnover.
On receipt, your drawing is attached to an enquiry sheet. If any information is missing, we ask for it all at once.
A project to scope, a drawing to discuss, a mould to adapt: book a call with our precast mould manager.
The meeting is booked in Jérôme Regourd's HubSpot calendar: your contact record is created and your enquiry is linked to it.
FAQ
Yes, a special mould is priced from the dimensioned product drawing. Without a drawing, describe your product and your machine: we will call you back to define it together.
It depends on the product, your machine and the target cycle rate. Immediate demoulding releases the mould straight away; delayed demoulding lets the product cure in the mould to hold its geometry. We advise you based on your drawing.
Yes: pipe machines, manhole machines, vibrating tables, turnover machines, whatever their origin, manufacturer and age. Give the brand and model in your enquiry.
Yes: refurbishment, new recesses, new height, adaptation to a new machine. Send photos and the product drawing.
It depends on the complexity of the mould and the workshop's workload. It is stated in the offer and confirmed with the order, once your approved drawings are received.
Do you make blocks, pavers, floor blocks or kerbs on a vibrating block machine? See ADLER block machine moulds.