Büchiglasuster process equipment and spare parts

Industrial reactor systems and assemblies from Büchiglasuster: pilotclave pressure reactors, kiloclave autoclaves, Cyclone stirrer drives, and glass systems.

Büchiglasuster: Swiss reactor systems, stirred autoclaves, and pilot plants

Swiss maker Büchi AG (Büchiglasuster) manufactures modular reactor systems, high-pressure autoclaves, and pilot plants in glass and alloys for chemical synthesis, hydrogenation, and pharmaceutical production.

Swiss precision engineering with manufacturing center located in Uster
Pressure reactor systems and stirred autoclaves ranging from 10 ml up to 500 liters
Operating parameters: full vacuum up to 200–500 bar and -90 °C to +300 °C
Constructions in borosilicate glass 3.3, stainless steel, Hastelloy, and titanium

Buchi pilotclave pressure reactors: process scale-up and kilo lab production

Reactor systems pilotclave with volumes from 20 to 500 liters are engineered for pilot plants, kilo labs, and small-scale manufacturing. Pressure vessels built in stainless steel, Hastelloy C22, or glass-lined steel operate reliably from full vacuum up to 200 bar and -90 to +300 °C.

Chemical process scale-up and API synthesis for pilot facilities and kilo laboratories
Corrosion-resistant vessel construction in Hastelloy C22, stainless steel, and glass-lined steel
Jacketed pressure vessels providing uniform heating, water cooling, and thermal transfer
Explosion-proof ATEX design and flexible automation systems for reaction control

Buchi kiloclave and miniclave laboratory autoclaves: flexible synthesis

Modular autoclaves kiloclave ranging from 0.5 to 20 liters feature a hydraulic vessel lift and tilt mechanism for effortless handling of heavy steel vessels. Compact benchtop miniclave and tinyclave units (10–600 ml) provide high-throughput screening and catalytic evaluation.

Hydraulic vessel lift with tilt function for safe opening, closing, and vessel cleaning
Operating pressures up to 60 or 200 bar and process temperatures up to +250 °C
Interchangeable pressure vessels fitted with sight glasses for visual reaction monitoring
Compatibility with acid-resistant liners in tantalum, titanium, and PTFE polymer

Buchi Cyclone hermetic magnetic stirrer drives and couplings

Magnetic stirrer drives Cyclone 075 and Cyclone 300 ac transfer torque contact-free through a sealed non-magnetic containment shell. The seal-less design eliminates fugitive emissions, packing leaks, and contamination when handling hazardous gases under high pressure.

Total hermetic isolation of process media without rotating dynamic mechanical seals
Elevated magnetic torque transmission engineered for high-viscosity media agitation
Integrated digital controller providing precise stepless motor speed regulation
Interchangeable impeller portfolio: Rushton gas-dispersion turbines, anchor, and pitch-blade

Buchi miniPilot, chemReactor glass systems and büchiflex connections

Borosilicate glass 3.3 reactor systems ranging from 5 to 250 liters are built for synthesis, distillation, and reflux under corrosive chemicals. Proprietary spherical büchiflex ball-and-socket glass couplings with PTFE gaskets compensate for angular misalignment and thermal expansion.

Superior chemical resistance of borosilicate glass 3.3 against severe acid environments
Flexible spherical büchiflex joints preventing mechanical stress and pipeline cracks
Full process transparency allowing direct observation of crystallization and phase changes
Seamless integration with glass Nutsche filters, reflux condensers, and mobile scrubbers

Factory spare parts, bottom valves, and pressure fittings for Büchiglasuster

Replacement components and heavy-duty fittings ensure durable, leak-free operation of chemical pressure reactor systems. The offering includes zero-dead-space bottom outlet valves DN3 to DN25 rated up to 500 bar, bursting discs, sampling cylinders, and PTFE gaskets.

Compact zero-dead-volume bottom discharge valves with manual or pneumatic actuator
Swagelok bursting discs and calibrated safety valves for rapid emergency overpressure relief
Manual and automated high-pressure sampling modules for inline sample withdrawal
Precision Pt100 temperature sensors, pressure transmitters, O-rings, and PTFE seals

Swiss engineering heritage and Buchiglasuster reactor manufacturing expertise

Swiss engineering manufacturer Buchi AG (Büchiglasuster) has served as an international pioneer in high-pressure reactor systems and pilot plant engineering for the chemical and pharmaceutical industries since 1946.

Headquartered in Uster, Switzerland, the company operates advanced research facilities and assembly plants. The company engineers comprehensive processing systems designed for chemical synthesis, process scale-up, catalytic reactions, and safe handling of hazardous media.

The Buchiglasuster manufacturing portfolio encompasses pilotclave and kiloclave high-pressure reactors, benchtop miniclave and tinyclave autoclaves, borosilicate glass miniPilot and chemReactor systems, as well as customized Nutsche filters and gas scrubbers.

A dedicated global network provides comprehensive technical support and engineering assistance throughout the operating life of the equipment.

High-pressure pilotclave reactor systems engineered for chemical process scale-up

Reactor systems Buchi pilotclave with vessel capacities from 20 to 500 liters are engineered for process scale-up in kilo laboratories and pilot plant facilities.

Pressure vessels manufactured from corrosion-resistant stainless steel, Hastelloy C22, or glass-lined steel operate reliably from full vacuum up to 200 bar and across broad temperature ranges from -90 to +300 °C.

Each pilotclave installation is tailored to specific User Requirement Specifications (URS) for challenging hydrogenation, polymerization, and nanoparticle synthesis processes.

Comprehensive system safety is ensured through heavy-duty bursting discs, ATEX-compliant explosion protection, heating jackets for rapid thermal transfer, and digital automation systems for process control.

Modular kiloclave and benchtop miniclave autoclaves with hydraulic vessel handling

Multipurpose autoclaves Buchi kiloclave with working volumes from 0.5 to 20 liters serve as flexible systems for pressurized chemical synthesis up to 60 or 200 bar at temperatures up to +250 °C.

A signature engineering feature is the integrated hydraulic vessel lift and tilt mechanism, allowing laboratory operators to open, discharge, and clean heavy metal vessels safely without manual strain.

For in-situ visual observation of chemical reactions, kiloclave vessels can be equipped with robust borosilicate glass or sapphire sight windows.

Alongside kiloclave, compact benchtop miniclave and tinyclave autoclaves with volumes from 10 to 600 ml provide efficient platforms for high-throughput catalyst screening and reaction kinetics evaluation in steel or inert PTFE setups.

Hermetic Cyclone magnetic stirrer drives with permanent rare-earth magnets

Dependable and seal-free agitation of pressurized reaction media is achieved through proprietary Buchi Cyclone 075 and Cyclone 300 ac magnetic stirrer drives.

Contactless torque transmission via powerful rare-earth magnets through an impermeable non-magnetic static shell eliminates rotating shaft packings and prevents fugitive emissions of hazardous gases.

An integrated digital controller enables precise speed regulation when stirring viscous polymer solutions or dense mineral slurries.

Depending on process requirements, drives are fitted with Rushton turbine impellers for gas dispersion in hydrogenation, anchor impellers for laminar wall scraping, or pitched-blade impellers for rapid liquid blending.

Borosilicate glass miniPilot and chemReactor systems with flexible buchiflex joints

For chemical synthesis, distillation, and reflux under aggressive mineral acids, Buchiglasuster fabricates miniPilot and chemReactor systems ranging from 5 to 250 liters in high-purity borosilicate glass 3.3.

Complete optical transparency allows chemical engineers to directly monitor dissolution, crystallization dynamics, and phase separation.

Glass apparatus assembly utilizes the proprietary spherical buchiflex ball-and-socket connection system with PTFE gaskets.

The flexible spherical joint geometry accommodates thermal expansion and assembly tolerances without transmitting mechanical stress to glass components, preventing micro-cracks and process leakage.

Maintenance guidelines for bottom outlet valves, bursting discs, and safety fittings

Sustained operational reliability of pressurized Buchiglasuster reactor systems requires systematic inspection of sealing elements, process fittings, and safety devices.

The factory parts program includes zero-dead-space bottom outlet valves DN3 to DN25 rated for pressures up to 350–500 bar with manual handwheels or pneumatic actuators.

Scheduled servicing encompasses inspection and replacement of calibrated Swagelok bursting discs, high-pressure needle and ball valves, fluoroelastomer O-rings, and calibration of Pt100 temperature probes.

Utilizing factory components prevents unscheduled downtime and ensures strict reproducibility across synthesis batches.

Büchiglasuster and model names are trademarks of their respective owners and are used only to identify the equipment for which we source parts. SpareX is not an official dealer, distributor or representative of Büchiglasuster and is not affiliated with the trademark owner. Origin, documents and warranty are stated for each item in the quotation.