In brief
Spitzer SK CAL series trailers are aluminium tipping silo trailers — the tank is raised hydraulically during discharge, which assists the unloading of denser materials with poor fluidisation characteristics. Capacity ranges from approx. 38 m³ to 89 m³, with supplementary pneumatic pressure of approx. 2 bar. This is the range of choice for gravel, sugar, salt, polymer granules and wood pellets.
Manufacturer: Spitzer Silo-Fahrzeugwerke GmbH, headquartered in Elztal-Dallau (Baden-Württemberg, Germany) — a family business founded in 1872.
PHS Magnum in Chorula (Gogolin commune, 4 km from the A4 motorway) offers comprehensive service for the SK series: tipping hydraulic systems, pneumatics, aluminium welding, refurbishment, accident repairs, TDT inspections and a Spitzer SF/SK spare parts stock.
Tel: +48 602 716 551
Spitzer SK CAL series — overview
| Parameter | Value |
|---|---|
| Type | Tipping silo trailer (hydraulically raised tank) |
| Capacity | approx. 38–89 m³ |
| Tank material | Aluminium (cylindrical tank) |
| Discharge | Tank tipping + pneumatic assistance approx. 2 bar |
| Variant designation | CAL (tipping) |
| Typical loads | Gravel, sand, bulk cement, sugar, salt, polymer granules, wood pellets, chemical powders |
How the capacity is encoded: the last two digits of the model number indicate the approximate tank capacity in m³ (e.g. SK 2760 ≈ 60 m³). The exact capacity of any individual unit is confirmed after checking the VIN.
SK series models
- SK 2745 CAL — approx. 45 m³
- SK 2753 CAL — approx. 53 m³
- SK 2760 CAL — approx. 60 m³
- SK 2766 CAL — approx. 66 m³
Sample datasheet — SK 2760 CAL
| Parameter | Value |
|---|---|
| Capacity | approx. 60 m³ (single compartment) |
| Gross vehicle weight | 40 t |
| Unladen weight | approx. 6.25 t |
| Payload | approx. 33.75 t |
| Axles | 3 × 9 t (BPW air suspension) |
| Tyres | 385/65 R22.5 |
| Working/test pressure | 2 bar |
| Discharge outlet | DN 800 |
| Hatches | 5 × DN 450 |
| Tank diameter | approx. 2,550 mm |
| Operating temperature | −40 °C / +80 °C |
| Materials | Aluminium (tank and frame) |
What the SK series carries
The tipping action enables unloading of materials that are harder to fluidise than those handled by the SF series:
- Gravel, sand — heavy materials where tipping assists gravitational flow
- Sugar, salt — hygroscopic materials prone to caking
- Bulk cement, chemical powders — fine-grained mineral products
- Polymer granules, wood pellets — lighter materials that exploit the full tank volume
SK series service at PHS Magnum
We have specialised in servicing Spitzer silo trailers for over 30 years. For the SK series, we carry out:
- Tipping hydraulic system — rams, hoses, pump; leakage and lift geometry diagnostics
- Pneumatic and aeration system — replacement of safety and butterfly valves, aeration pad replacement
- Aluminium TIG welding — repair of tank cracks and brackets (TDT-certified welders)
- Accident repairs — frame straightening, tank repair, documentation for insurers and TDT
- Lacquer refurbishment — shot-blasting to Sa 2.5, epoxy primer, 2K PUR topcoat
- TDT inspections — preparation and management of pressure vessel inspections
Consumable parts are listed separately: Spitzer SF/SK spare parts.
How to book SK service or refurbishment — step by step
- Enquiry — call +48 602 716 551: provide the model, VIN, year and scope of work.
- Assessment and quotation — on-site diagnosis in Chorula; written quotation within 24 hours (or based on photographs).
- Repair or refurbishment — tipping hydraulics, pneumatics, aluminium TIG welding, lacquer refurbishment.
- Documentation and TDT inspection — welding records, certificates, coordination of TDT pressure vessel inspection.
- Collection — vehicle ready to return to service.
Related
- Spitzer SF / SK Spare Parts — pads, valves, seals, tipping system components
- Spitzer Spare Parts — full catalogue from our Chorula stock
- Spitzer SF Series — non-tipping silo trailers, approx. 23–63 m³
- Spitzer Service · Spitzer Trailer Repair · TDT Inspections
