Serdi cylinder head machines
Machines Serdi S.A. is a worldwide leader in cylinder head and valve seat machinery. Serdi UK has long held the UK agency and supplies the machines, cutters and spares.
Compare the range
Capacity and motor figures are from each machine's product page.
| Machine | Machining capacity | Spindle motor | Notes |
|---|---|---|---|
| Serdi Profile | 14 to 120 mm | 3 kW built-in | Siemens CNC, multi-touch screen |
| Serdi Profile Large | 14 to 120 mm | 3 kW built-in | Extended beam for large, heavy heads |
| Serdi 100 ES L | Not listed | 3 kW built-in | Spindle 116 mm diameter, 345 mm stroke |
| Serdi 4.5 | 16 to 120 mm | 2.2 kW | Air floated table bars, guides down to 4 mm |
| Serdi 3.5 | 16 to 70 mm | 1.5 kW | Digital readout, guides down to 3 mm |
| Serdi Micro 2000 | 16 to 40 mm | None (manual) | Portable, 9.5 lb (4.3 kg) |
| Serdi Micro Magnet | Small diameters | Not listed | Dual centering air cushion system |
The machines in detail
Serdi Profile
A versatile machine for cylinder heads from small motorcycle engines to large stationary engines. The cast iron base is redesigned and optimised with finite element analysis for rigidity.
| Specification | Value |
|---|---|
| Machining capacity | 14 to 120 mm, more with special tooling |
| Spindle motor | 3 kW built-in, maximum torque 0 to 3,000 rpm |
| U axis radius | 22 mm |
| Z axis stroke | 120 mm |
| Control | Latest-generation Siemens CNC |
- Triple air-float centering system
- Moving parts about 30% lighter than the previous generation
- Intake and exhaust seats machined without changing tool holders
- Direct drive for accuracy at low speeds
Serdi Profile Large
The same Profile platform with an extended beam, which makes it easier to mount and unmount large, heavy heads and extends the machine head's stroke.
| Specification | Value |
|---|---|
| Machining capacity | 14 to 120 mm, more with special tooling |
| Spindle motor | 3 kW built-in |
| Control | Siemens CNC |
Serdi 100 ES L
A larger frame for large heads such as natural gas heads, marine workboat engines and rail casting heads. The longer beam (500 mm extra) makes loading heavy heads on the floating table easier.
| Specification | Value |
|---|---|
| Spindle diameter | 116 mm |
| Spindle stroke | 345 mm |
| Spindle motor | 3 kW built-in |
| Supplied with | 2 riser bars and a set of 3 parallel bars |
Serdi 4.5
Accurate valve seat machining from the smallest to the biggest diameters, with a light-weight floating assembly that copes with guide diameters as small as 4 mm.
| Specification | Value |
|---|---|
| Machining capacity | 16 to 120 mm |
| Spindle motor | 2.2 kW |
| Machine bed | Modular cast iron |
- Fully pneumatic and electric operation
- LED work light
- Air floated table bars
Serdi 3.5
A valve seat and valve guide cutting machine designed especially for multi-valve cylinder heads.
| Specification | Value |
|---|---|
| Machining capacity | 16 to 70 mm |
| Spindle motor | 1.5 kW |
| Guide size | Down to 3 mm |
- Triple air-float patented centering system
- Digital readout for spindle speed and machining depth
- LED worklight
Serdi Micro 2000
A portable multi-angle seat cutting unit for valve seat machining and seat pocket counterboring. It uses standard Serdi tooling and bolts onto any kind of cylinder head.
| Specification | Value |
|---|---|
| Machining capacity | 16 mm to 40 mm |
| Depth control | Vernier, 15 mm travel, 0.02 mm increments |
| Weight | 4.3 kg |
| Body tilt / spindle tilt | 30 degrees / 8 degrees |
| Dimensions | 500 x 350 x 230 mm |
- Needs no power or air connection
- Bit holders mount directly into the spindle
Serdi Micro Magnet
A multi-angle seat cutting unit with a precision dual centering air cushion system. Ideal for low-volume motorcycle work and for automotive shops on small diameters.
Spares, cutters and tooling
The Serdi spares category is split into four.
- Accessories
- Fixed cutters
- Machine spares
- Tooling
Spindle cleaning tool
The Serdi spindle cleaning tool keeps the quill free of dirt and metal shards. It returned to stock in June 2024.
Quote on a Serdi machine
Call the team with your cylinder heads and your throughput.