Ultra-high pressure cold isostatic press up to 500 MPa for uniform powder compaction, ceramic and composite material research. CE and TUV certified. Engineered and commissioned by Virospuk.
Uniaxial die pressing — the most common powder compaction method — applies pressure only along one axis, producing density gradients and internal stress concentrations in the compact that reduce green strength, cause dimensional distortion during sintering, and limit achievable final density. Cold isostatic pressing (CIP) overcomes this fundamental limitation by applying hydrostatic pressure equally in all directions from a pressurised liquid medium surrounding the elastomeric mould. The result is a compact with virtually uniform density distribution and significantly higher green strength — enabling reliable high-density sintering of ceramics, hard alloys, refractory materials, and composite systems that would fail under uniaxial pressing conditions.
Virospuk engineers will discuss your powder characteristics, required compact geometry, target green density, and sintering programme before specifying the correct pressure vessel size and operating pressure for your application.
| Parameter | Specification |
|---|---|
| Maximum operating pressure | Up to 500 MPa (5000 bar) |
| Pressure medium | Water or oil-based hydraulic fluid (application-dependent) |
| Pressure vessel | High-strength alloy steel, hydraulically sealed |
| Sample mould | Flexible elastomeric mould (rubber or polyurethane) — sample-specific geometry |
| Pressure uniformity | Hydrostatic — equal pressure applied in all directions simultaneously |
| Pressure control | Digital pressure gauge with precision pump control |
| Pressurisation rate | Adjustable — controlled ramp for sensitive materials |
| Dwell time | Programmable |
| Depressurisation | Controlled release — critical for avoiding compact cracking in brittle ceramics |
| Design | Desktop / benchtop — no dedicated floor anchoring required |
| Power input | 220 V / 50 Hz — Indian standard |
| Certifications | CE, TUV (pressure vessel safety) |
| Warranty | 12 months from commissioning at your facility |
For analytical sample preparation (XRD discs, SEM cross-sections), uniaxial pressing is generally adequate. For structural ceramics, technical ceramics for electronic applications, hard alloy tooling blanks, and composite material specimens where dimensional accuracy and final density are critical, CIP produces demonstrably superior results — higher green density, more homogeneous microstructure after sintering, less warpage, and fewer sintering defects. Virospuk engineers will advise on whether CIP is necessary for your specific material and application.
Cold isostatic presses are rarely stocked in India. Virospuk manages the full import, installation, and commissioning process. Contact our engineering team to discuss your compact geometry, material, and target density requirements.
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