DRETOP TGM-6085-II Diaphragm Vacuum Pump

Overview

The DRETOP TGM-6085-II is an oil-free diaphragm vacuum pump engineered for reliable, low-maintenance operation in laboratory and light industrial environments. Unlike rotary vane pumps that require lubricating oil and generate hydrocarbon vapor, this pump operates on a dry, positive-displacement principle: a motor-driven eccentric mechanism actuates a flexible PTFE-reinforced diaphragm, creating cyclic expansion and compression of the pumping chamber. This design eliminates oil contamination, prevents backstreaming, and ensures chemically inert gas handling—critical for applications involving solvents, moisture-sensitive samples, or cleanroom-adjacent workflows. With a nominal pumping speed of 30 L/min and an ultimate vacuum level of –85 kPa (150 mbar absolute), the TGM-6085-II delivers stable suction performance suitable for continuous-duty tasks such as vacuum drying, rotary evaporation support, solid-phase extraction (SPE), vacuum filtration, and degassing of aqueous or organic solutions. Its compact footprint (315 × 135 × 210 mm) and 160 W brushless motor enable quiet, energy-efficient operation without external cooling or exhaust scrubbing.

Key Features

• Oil-free operation with PTFE-coated diaphragm and corrosion-resistant stainless-steel valve plates—ensures long service life and compatibility with mild acids, bases, and polar solvents.
• Low-noise design (<52 dB(A) at 1 m), achieved through balanced eccentric drive, vibration-dampening rubber feet, and acoustic enclosure integration.
• No maintenance required for lubrication; only periodic inspection of inlet filter and diaphragm integrity recommended per 6–12 months of typical lab use.
• Integrated thermal overload protection and automatic restart delay to prevent motor damage during transient overloads or ambient temperature fluctuations.
• Universal 220 V / 50 Hz input with CE-compliant internal EMI filtering—compatible with standard laboratory power distribution systems across Europe, Southeast Asia, and Latin America.
• Front-panel pressure gauge port (G1/4″ BSP) enables optional analog or digital vacuum monitoring without external adapters.

Sample Compatibility & Compliance

The TGM-6085-II is compatible with common laboratory vacuum accessories including KF-16 and KF-25 flange adapters, vacuum traps (glass or PTFE-lined), and inline particulate filters. It is routinely deployed upstream of rotary evaporators (e.g., IKA RV 10, Buchi R-300), vacuum ovens (DRETOP ZK series), SPE manifolds, and benchtop freeze dryers. While not rated for explosive atmospheres (ATEX) or Class I Div 1 environments, its oil-free architecture meets ISO 8573-1:2010 Class 0 air purity requirements for non-lubricated compressed gas streams. The pump complies with IEC 61000-6-3 (EMC emission limits) and IEC 61000-6-2 (immunity standards), and its construction materials conform to RoHS Directive 2011/65/EU. For GLP/GMP-regulated laboratories, audit-ready documentation—including factory calibration certificates and material declarations—is available upon request.

Software & Data Management

The TGM-6085-II operates as a standalone analog device with no embedded microcontroller or digital interface. However, it integrates seamlessly into automated vacuum control systems via its 0–10 V analog input (optional add-on module) or dry-contact relay output (standard on TGM-6085-II-V variant). When paired with third-party vacuum controllers (e.g., VAT VAO-100, MKS 925), it supports programmable ramping, setpoint hold, and real-time pressure logging compliant with FDA 21 CFR Part 11 when used within validated system architectures. All firmware-enabled accessories are supplied with traceable calibration records and comply with ISO/IEC 17025:2017 measurement uncertainty reporting protocols.

Applications

• Vacuum drying of heat-sensitive pharmaceutical intermediates and polymer films in controlled-environment ovens.
• Rotary evaporation of ethanol, acetone, or ethyl acetate under reduced pressure—minimizing thermal decomposition risk.
• Automated solid-phase extraction for environmental water analysis (EPA Method 508.1, 525.3) where solvent carryover must be avoided.
• Inert atmosphere purging of gloveboxes and Schlenk lines prior to catalyst handling.
• Supporting vacuum-assisted resin infiltration in composite material prepreg processing.
• Pre-concentration of volatile organic compounds (VOCs) in air sampling cartridges prior to GC-MS analysis.

FAQ

What is the maximum continuous duty cycle for the TGM-6085-II?
The pump is rated for indefinite continuous operation at ambient temperatures ≤35°C and relative humidity ≤80% non-condensing, provided inlet gas is free of liquid aerosols and particulates >5 µm.
Can this pump handle water vapor or condensable vapors?
It tolerates incidental water vapor exposure but is not equipped with a gas ballast valve; prolonged operation with high-humidity or condensable loads may accelerate diaphragm fatigue and reduce ultimate vacuum stability.
Is the TGM-6085-II compatible with vacuum filtration using Büchner funnels?
Yes—when used with a safety trap and appropriate filter flask (≥1 L capacity), it achieves rapid filtration of fine precipitates (e.g., CaCO₃, BaSO₄) without membrane clogging or solvent boil-over.
Does DRETOP provide calibration services for this model?
Factory calibration is performed per ISO 5167-1:2003 flow reference standards; field recalibration kits and certified technician dispatch are available through authorized regional service centers.
What replacement parts are stocked globally?
Diaphragm assemblies (P/N: TGM-DIA-6085), inlet filters (P/N: TGM-FIL-01), and foot pads (P/N: TGM-PAD-02) are maintained in EU, US, and APAC distribution hubs with lead times ≤5 business days.