VACUUBRAND MD 1C Chemistry Diaphragm Vacuum Pump – Brand New
The VACUUBRAND MD 1C Chemistry Diaphragm Vacuum Pump is a high-performance, oil-free laboratory vacuum pump designed for rotary evaporation, high-boiling solvent evaporation, vacuum concentration, vacuum drying, evacuation, degassing, and continuous pumping of corrosive gases and vapors. Featuring a four-head, three-stage chemistry diaphragm design, the MD 1C achieves an ultimate vacuum of 2 mbar (1.5 Torr) while delivering maximum pumping speed of 0.88 cfm at 60 Hz.
This combination of deep diaphragm-pump vacuum, exceptional chemical resistance, integrated gas ballast, quiet operation, and compact construction makes the MD 1C particularly valuable for chemistry laboratories that require substantially lower pressures than an MZ-series pump can provide but want to avoid the oil maintenance of rotary vane technology.
This brand-new VACUUBRAND MD 1C Chemistry Diaphragm Pump is available from American Instrument Exchange for pharmaceutical, biotechnology, medicinal chemistry, analytical, academic, and industrial laboratories seeking reliable deep vacuum for chemically demanding applications.
VACUUBRAND MD 1C Chemistry Diaphragm Pump Key Features
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Brand-new VACUUBRAND MD 1C chemistry diaphragm vacuum pump
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Oil-free pumping of corrosive gases and vapors
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2 mbar / 1.5 Torr ultimate vacuum
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0.88 cfm maximum pumping speed at 60 Hz
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1.3 m³/h maximum pumping speed at 50 Hz
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Four diaphragm heads
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Three pumping stages
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Outstanding chemical resistance
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Chemically resistant fluoroplastic wetted components
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Proven PTFE sandwich diaphragms
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Designed for demanding solvent-vapor applications
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Particularly effective for high-boiling solvents
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Integrated gas ballast valve
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4 mbar / 3 Torr ultimate vacuum with gas ballast
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Excellent vacuum performance even during condensable-vapor handling
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Extremely quiet operation at approximately 41 dBA
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Very low vibration
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Maintenance-free drive system
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Long diaphragm service life
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Compact footprint for a three-stage chemistry pump
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NRTL-certified configuration
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Available brand new from American Instrument Exchange
VACUUBRAND MD 1C Chemistry Diaphragm Pump Overview
The VACUUBRAND MD 1C is designed for chemistry applications that require deep vacuum without the maintenance and contamination concerns associated with an oil-sealed rotary vane pump.
Its four diaphragm heads are arranged across three pumping stages, allowing the MD 1C to reach an ultimate pressure of just 2 mbar / 1.5 Torr. That places the MD 1C in a substantially deeper vacuum class than two-stage chemistry diaphragm pumps such as the MZ 1C and MZ 2C NT.
VACUUBRAND manufactures the wetted components from chemically resistant fluoroplastics and uses proven PTFE sandwich diaphragms to provide durability during continuous exposure to many corrosive gases and solvent vapors.
The integrated gas ballast valve further improves performance with easily condensable vapors and high-boiling solvents, allowing the MD 1C to maintain an ultimate vacuum of approximately 4 mbar / 3 Torr even with gas ballast in operation.
The result is a compact vacuum pump that combines deep vacuum, chemical resistance, oil-free operation, and strong vapor tolerance in a format well suited for daily chemistry-laboratory use.
VACUUBRAND MD 1C Key Specifications
| Specification |
Details |
| Manufacturer |
VACUUBRAND |
| Model |
MD 1C |
| Equipment Type |
Chemistry Diaphragm Vacuum Pump |
| Pump Design |
Oil-Free Chemistry Diaphragm |
| Number of Heads |
4 |
| Number of Stages |
3 |
| Maximum Pumping Speed at 60 Hz |
0.88 cfm |
| Maximum Pumping Speed at 50 Hz |
1.3 m³/h |
| Ultimate Vacuum |
2 mbar / 1.5 Torr |
| Ultimate Vacuum with Gas Ballast |
4 mbar / 3 Torr |
| Maximum Back Pressure |
1.1 bar absolute |
| Inlet Connection |
Hose Nozzle DN 8–10 mm |
| Outlet Connection |
Hose Nozzle DN 8 mm |
| Rated Motor Power |
0.08 kW / 80 W |
| Rated Motor Speed |
1500 rpm at 50 Hz / 1800 rpm at 60 Hz |
| Operating Ambient Temperature |
10°C to 40°C |
| Storage Temperature |
-10°C to 60°C |
| Dimensions (L × W × H) |
338 × 142 × 223 mm (13.3 × 5.6 × 8.8 in.) |
| Weight |
7.9 kg (17.4 lb) |
| Sound Pressure Level |
Approximately 41 dBA
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| Protection Class |
IP40 |
| ATEX Conformity |
II 3/- G Ex h IIC T3 Gc X, Internal Atmosphere Only |
| Electrical Requirements |
100–115 VAC, 50/60 Hz; 120 VAC, 60 Hz; 220–230 VAC versions available |
| Certification |
NRTL Certified |
| Condition |
Brand New |
Specifications compiled from current VACUUBRAND manufacturer literature and American Instrument Exchange product information.
Energy Efficiency & Operating Costs
The VACUUBRAND MD 1C uses an 80-watt motor while achieving an ultimate vacuum of 2 mbar, making it an efficient option for laboratories that require deep chemical vacuum without the higher power requirements and oil maintenance associated with many rotary vane pumps.
Because the MD 1C operates completely oil-free, laboratories eliminate routine vacuum-oil purchases, oil changes, contaminated-oil disposal, oil mist, and oil backstreaming.
This is particularly valuable in solvent applications. Chemical vapors can rapidly contaminate the oil in conventional rotary vane pumps, degrading vacuum performance and requiring more frequent maintenance. The MD 1C avoids that problem by using chemically resistant diaphragm technology.
Its maintenance-free drive system and long-life PTFE sandwich diaphragms further help reduce routine service requirements and total ownership costs.
Common Applications
The VACUUBRAND MD 1C is particularly well suited for rotary evaporation, high-boiling solvent evaporation, vacuum concentration, vacuum drying, chemical-vapor pumping, evacuation, degassing, organic synthesis, and other laboratory processes requiring deep, chemically resistant vacuum.
Its 2 mbar ultimate vacuum gives it enough capability to process solvents and applications that may be difficult for shallower-vacuum MZ-series chemistry pumps.
Ideal Laboratory Types
The MD 1C is an excellent choice for pharmaceutical research laboratories, medicinal chemistry groups, biotechnology companies, organic chemistry laboratories, analytical chemistry facilities, university research laboratories, contract research organizations, process-development laboratories, materials laboratories, and industrial R&D facilities.
It is especially valuable where researchers routinely work with solvents but require deeper vacuum than a conventional two-stage chemistry diaphragm pump can provide.
Three-Stage Deep Vacuum Performance
The defining performance feature of the MD 1C is its three-stage pumping design.
Four diaphragm heads are arranged to progressively reduce pressure across three stages. This enables the MD 1C to achieve approximately 2 mbar / 1.5 Torr ultimate vacuum, significantly deeper than the 7–12 mbar range of many two-stage chemistry diaphragm pumps.
This deeper vacuum allows many solvents to evaporate at lower temperatures and expands the pump's usefulness for high-boiling solvents, vacuum drying, concentration, and demanding evacuation processes.
Unlike a rotary vane pump, the MD 1C accomplishes this without vacuum oil.
Chemical Resistance & Corrosive Vapor Handling
The MD 1C is specifically engineered for continuous oil-free pumping of corrosive gases and vapors.
All major components in contact with pumped media are manufactured from chemically resistant fluoroplastics. VACUUBRAND also uses PTFE sandwich diaphragms designed to provide long operating life under demanding chemical conditions.
This construction makes the MD 1C particularly well suited for organic chemistry, pharmaceutical development, solvent evaporation, and other applications where vapor compatibility is a primary pump-selection consideration.
Specific chemical compatibility should always be verified for the substances, concentrations, temperatures, and process conditions involved.
Gas Ballast for High-Boiling & Condensable Solvents
The MD 1C includes an integrated gas ballast valve and is specifically optimized for applications involving easily condensable vapors and high-boiling solvents.
Gas ballast introduces a controlled quantity of gas during compression, helping reduce condensation inside the pump.
With gas ballast closed, the MD 1C reaches approximately 2 mbar / 1.5 Torr.
With gas ballast operating, the pump still achieves approximately 4 mbar / 3 Torr, retaining excellent vacuum performance while improving condensable-vapor handling.
This combination is particularly valuable during solvent evaporation and vacuum drying, where vapor loads may vary significantly throughout a process.
MD 1C for Rotary Evaporators
The VACUUBRAND MD 1C is an excellent vacuum source for rotary evaporation applications requiring deeper vacuum or work with higher-boiling solvents.
Reducing system pressure lowers solvent boiling temperature, allowing evaporation to proceed at reduced thermal exposure. The MD 1C's 2 mbar ultimate vacuum gives laboratories a wider solvent-processing range than shallower-vacuum diaphragm pumps.
VACUUBRAND specifically lists rotary evaporators as an application example for the MD 1C platform.
Because the standard MD 1C is a fixed-speed pump, laboratories requiring precise pressure regulation can pair it with an appropriate manual or electronic vacuum-control system.
High-Boiling Solvent Applications
VACUUBRAND specifically notes that the MD 1C with gas ballast is well prepared for pumping easily condensable vapors, including high-boiling solvents.
Higher-boiling solvents can require much deeper vacuum to achieve practical evaporation rates at moderate temperatures. The MD 1C's three-stage design and 2 mbar ultimate pressure make it especially useful where an MZ-series chemistry pump may not provide sufficient vacuum.
This makes the MD 1C attractive for medicinal chemistry, pharmaceutical development, organic synthesis, and process-development workflows involving difficult-to-evaporate solvents.
MD 1C for Vacuum Concentration
The MD 1C can also provide a strong vacuum source for compatible vacuum concentrators and evaporation systems.
Vacuum concentration removes solvent under reduced pressure, often from multiple small samples. Deep vacuum allows solvents to evaporate at reduced temperatures while the chemically resistant diaphragm system avoids oil contamination from solvent vapor.
Actual compatibility should be verified against the concentrator manufacturer's recommended pumping speed and target vacuum.
MD 1C for Vacuum Drying
The MD 1C's combination of 2 mbar ultimate vacuum and chemical resistance makes it useful for compatible vacuum drying applications.
Reducing pressure can accelerate moisture and solvent removal while allowing lower processing temperatures. This can be particularly important for heat-sensitive materials.
When significant vapor or liquid carryover is expected, an inlet separator, cold trap, or appropriate condenser may be useful to protect the pump and improve solvent management.
MD 1C vs. MZ 1C
The MZ 1C and MD 1C are both compact chemistry diaphragm pumps, but their vacuum performance differs substantially.
The MZ 1C uses two heads and two stages, providing approximately 0.5 cfm at 60 Hz with a 12 mbar ultimate vacuum.
The MD 1C uses four heads and three stages, providing approximately 0.88 cfm at 60 Hz while reaching 2 mbar.
For smaller solvent-evaporation applications where 12 mbar is sufficient, the MZ 1C offers a compact and economical solution.
For higher-boiling solvents, deeper evaporation vacuum, faster evacuation, or applications requiring pressure closer to 2 mbar, the MD 1C provides significantly greater capability.
MD 1C vs. MZ 2C NT
The MZ 2C NT provides somewhat greater pumping speed, while the MD 1C provides substantially deeper vacuum.
The MZ 2C NT delivers approximately 1.4 cfm at 60 Hz and reaches 7 mbar.
The MD 1C delivers approximately 0.88 cfm and reaches 2 mbar.
The MZ 2C NT may therefore be better for applications with larger vapor loads where 7 mbar is sufficient. The MD 1C is stronger when ultimate vacuum and high-boiling solvent performance are more important.
MD 1C vs. PC 3001 VARIO Select TE
Both the MD 1C and PC 3001 VARIO Select TE use multi-stage chemistry diaphragm technology capable of reaching approximately 2 mbar.
The key difference is system integration.
The MD 1C is a compact fixed-speed vacuum pump. It provides the core deep-vacuum chemistry performance without integrated automatic process control or solvent-recovery accessories.
The PC 3001 VARIO Select TE adds VARIO variable-speed operation, a VACUU·SELECT electronic vacuum controller, automatic boiling-pressure detection, inlet protection, and a dry-ice exhaust condenser.
For laboratories that already have vacuum regulation and vapor-management equipment—or simply need the pump itself—the MD 1C is the more straightforward solution.
For automated rotary evaporation and integrated solvent recovery, the PC 3001 VARIO Select TE offers considerably more process automation.
MD 1C vs. RZ 2.5 Rotary Vane Pump
The MD 1C and RZ 2.5 represent two very different approaches to deeper laboratory vacuum.
The MD 1C reaches 2 mbar using oil-free chemistry diaphragm technology and is specifically engineered for chemically demanding gases and vapors.
The RZ 2.5 rotary vane pump reaches approximately 0.002 mbar, around three orders of magnitude deeper, making it suitable for freeze drying, Schlenk-line chemistry, and fine-vacuum applications.
However, the RZ 2.5 requires vacuum oil and is more sensitive to solvent contamination.
For chemical evaporation and solvent handling where 2 mbar is sufficient, the MD 1C's oil-free chemical resistance can be a major advantage. For true fine-vacuum applications, the RZ 2.5 provides much deeper ultimate pressure.
Recommended Laboratory Applications
The VACUUBRAND MD 1C is recommended for:
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Rotary evaporation
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High-boiling solvent evaporation
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Vacuum concentration
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Vacuum drying
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Organic synthesis
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Medicinal chemistry
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Pharmaceutical process development
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Chemical-vapor pumping
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Corrosive gas pumping
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Evacuation
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Degassing
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Analytical sample preparation
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Solvent removal
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Individual deep-vacuum chemistry workstations
Application suitability should always be evaluated based on required ultimate pressure, pumping speed, vapor load, solvent compatibility, and process conditions.
Why Choose the VACUUBRAND MD 1C?
The MD 1C occupies an important space between conventional two-stage chemistry diaphragm pumps and oil-sealed fine-vacuum systems.
It provides:
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2 mbar ultimate vacuum
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Strong chemical resistance
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Oil-free operation
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Four pump heads
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Three pumping stages
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Gas ballast for condensable vapors
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Excellent high-boiling-solvent capability
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Low 80-watt motor power
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Approximately 41 dBA operation
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A compact 13.3" × 5.6" × 8.8" footprint
For laboratories that need deeper chemical vacuum without moving to rotary vane technology, the MD 1C is an especially compelling solution.
Brand-New VACUUBRAND Vacuum Pumps from American Instrument Exchange
American Instrument Exchange offers the VACUUBRAND MD 1C brand new, giving laboratories access to VACUUBRAND's deep-vacuum chemistry diaphragm technology from an established laboratory equipment supplier.
American Instrument Exchange offers a growing VACUUBRAND lineup covering general-purpose filtration pumps, chemistry diaphragm pumps, higher-throughput vacuum systems, VARIO automatic-control pumps, rotary vane pumps, and Chemistry-HYBRID technology.
This allows laboratories to select vacuum equipment based on actual application requirements—from filtration and aspiration through solvent evaporation, high-boiling solvent processing, vacuum drying, freeze drying, and fine-vacuum research.
Shipping and Installation Considerations
The VACUUBRAND MD 1C is supplied completely assembled and ready for installation.
The pump uses a DN 8–10 mm inlet hose nozzle and a DN 8 mm outlet connection. Vacuum tubing should be properly rated for vacuum service and chemically compatible with the vapors being processed.
VACUUBRAND offers configurations for 100–115 VAC, 120 VAC, and 220–230 VAC operation, so buyers should verify the exact electrical configuration on the pump nameplate before installation.
For processes producing substantial condensate or solvent vapor, laboratories should evaluate appropriate inlet separators, cold traps, exhaust condensers, ventilation, and other vapor-management equipment.
Related Laboratory Equipment
Laboratories purchasing deep-vacuum chemistry diaphragm pumps frequently also require rotary evaporators, vacuum concentrators, vacuum ovens, recirculating chillers, cold traps, solvent condensers, laboratory reactors, analytical balances, freeze dryers, and chemical fume hoods.
American Instrument Exchange offers new and refurbished laboratory equipment for pharmaceutical research, medicinal chemistry, biotechnology, analytical laboratories, process development, academic research, and industrial R&D.
VACUUBRAND MD 1C Frequently Asked Questions
What is the VACUUBRAND MD 1C primarily used for?
The MD 1C is designed for continuous oil-free pumping of corrosive gases and vapors where relatively deep vacuum is required. Typical applications include rotary evaporation, high-boiling solvent evaporation, vacuum concentration, vacuum drying, evacuation, and degassing.
What is the ultimate vacuum of the MD 1C?
The VACUUBRAND MD 1C reaches an ultimate vacuum of 2 mbar, or approximately 1.5 Torr.
What is the pumping speed of the MD 1C?
Maximum pumping speed is approximately 0.88 cfm at 60 Hz or 1.3 m³/h at 50 Hz.
How many pump heads and stages does the MD 1C have?
The MD 1C uses four diaphragm heads arranged across three pumping stages.
Is the MD 1C oil-free?
Yes. The MD 1C is a completely oil-free chemistry diaphragm vacuum pump, eliminating routine vacuum-oil changes, oil mist, and oil backstreaming.
Is the MD 1C chemically resistant?
Yes. VACUUBRAND manufactures the parts exposed to pumped media from chemically resistant fluoroplastics and uses PTFE sandwich diaphragms for durability.
Does the MD 1C have gas ballast?
Yes. The MD 1C includes an integrated gas ballast valve specifically useful when pumping condensable vapors and high-boiling solvents.
What vacuum does the MD 1C achieve with gas ballast?
VACUUBRAND specifies approximately 4 mbar / 3 Torr ultimate vacuum with gas ballast operating.
Is the MD 1C suitable for high-boiling solvents?
Yes. VACUUBRAND specifically notes that the MD 1C with gas ballast is optimized for easily condensable vapors and high-boiling solvents.
Can the MD 1C be used with a rotary evaporator?
Yes. VACUUBRAND identifies rotary evaporators as an application example for the MD 1C. Its 2 mbar ultimate vacuum makes it particularly useful when deeper vacuum or higher-boiling solvent capability is required.
What is the difference between the MD 1C and MZ 1C?
The MZ 1C reaches approximately 12 mbar with 0.5 cfm pumping speed, while the MD 1C reaches 2 mbar with approximately 0.88 cfm. The MD 1C therefore provides both deeper vacuum and greater throughput.
What is the difference between the MD 1C and MZ 2C NT?
The MZ 2C NT provides somewhat higher pumping speed at approximately 1.4 cfm, but the MD 1C provides substantially deeper vacuum at 2 mbar versus approximately 7 mbar.
Is the MD 1C as deep a vacuum pump as an RZ rotary vane model?
No. An RZ-series two-stage rotary vane pump can reach much deeper fine vacuum in the 10⁻³ mbar range. The MD 1C is instead optimized for oil-free deep chemical vacuum and solvent-vapor handling.
How quiet is the MD 1C?
VACUUBRAND specifies a sound pressure level of approximately 41 dBA, making the MD 1C exceptionally quiet for a multi-stage chemistry vacuum pump.
What are the dimensions of the MD 1C?
The pump measures approximately 13.3" L × 5.6" W × 8.8" H and weighs approximately 17.4 lb.
What are the electrical requirements?
VACUUBRAND offers MD 1C versions for 100–115 VAC, 120 VAC, and 220–230 VAC at 50/60 Hz depending on configuration. Buyers should confirm the exact nameplate configuration before installation.
Is this VACUUBRAND MD 1C refurbished or used?
No. This VACUUBRAND MD 1C Chemistry Diaphragm Vacuum Pump is brand new, not refurbished or previously used, and is available from American Instrument Exchange.
