OS-T40-Plus/OS-T60-Plus/ OS-T400-Plus LCD Digital Timed Overhead Stirrer

OS-T40-Plus / OS-T60-Plus / OS-T400-Plus LCD Digital Timed Overhead Stirrer

Advanced heavy-duty overhead stirrers with constant speed auto-torque adjustment, bi-directional rotation, external PT1000 thermometer input, and multi-port digital communication (RS485, Type-C, USB) for volumes up to 100L.

Up to 100L Stirring Volume | Forward & Reverse Rotation | External Temp Sensor (PT1000) | RS485, Type-C, USB

Key Features

  • Constant Speed Auto-Torque: Microprocessor continuously monitors fluid viscosity and dynamically adjusts motor torque to maintain exact set rpm.
  • Bi-Directional Stirring: Supports forward rotation, reverse rotation, and customizable intermittent agitation cycles.
  • External Thermometer Input: Direct plug-in port for PT1000 temperature probe displays real-time sample temperature on the LCD screen.
  • Pass-Through Top Shaft: “Through-the-top” design allows quick impeller depth adjustments without moving the stirrer motor head.
  • Multi-Port Digital Connectivity: Standard RS485, Type-C, and USB ports allow comprehensive PC control, data logging, and automation integration.
  • Electronic Safety Lock & Alarm: Safety lock prevents unauthorized parameter tampering; audible buzzer sounds upon cycle completion or alarm state.
  • Torque & Temperature Calibration: Supports on-site calibration of both torque and temperature measurements for GLP compliance.

Applications

Engineered for chemical synthesis, materials science, biopharmaceuticals (mixing APIs, colloidal gold prep, tablet coatings), food analysis and processing (butter, sauces, syrups), cosmetics (creams, shampoos), and building material suspensions (slurries, polymers).

Technical Specifications

Specification OS-T40-Plus OS-T60-Plus OS-T400-Plus
Max. Stirring Quantity [H2O] 30 L 50 L 100 L
Speed Range 50 – 2200 rpm 50 – 2200 rpm Gear A: 10-400 rpm
Gear B: 50-2000 rpm
Speed Control Accuracy ±3 rpm ±3 rpm ±3 rpm
Max. Torque 40 N·cm 60 N·cm 400 N·cm
Max. Viscosity 10,000 mPa·s 50,000 mPa·s 150,000 mPa·s
Time Settings Range 0 min – 99 h 59 min 0 min – 99 h 59 min 0 min – 99 h 59 min
Motor Type Brushless DC motor Brushless DC motor Brushless DC motor
External Temperature Sensor PT1000 (accuracy ±0.2 °C) PT1000 (accuracy ±0.2 °C) PT1000 (accuracy ±0.2 °C)
Chuck Clamp Range 0.5 – 10 mm 0.5 – 10 mm 0.5 – 10 mm
Data Interfaces RS485, Type-C, USB RS485, Type-C, USB RS485, Type-C, USB
Motor Input / Output Power 60 W / 50 W 110 W / 100 W 180 W / 170 W
Total Power 70 W 120 W 300 W
Dimensions (W × H × D) 90 × 240 × 227 mm 90 × 240 × 227 mm 101 × 270 × 264 mm
Weight 3.5 kg 3.5 kg 5.2 kg
Protection Class IP42 IP42 IP42

Optional Stirring Impellers (316L Stainless Steel & PTFE)

Cat. No. Impeller Type Specifications & Material Application
18900071 Propeller Stirrer Shaft L: 40 cm, Stirrer Ø: 5 cm, Shaft Ø: 8 mm, 316L SS Standard stirring at medium and high speed
18900072 Straight Stirrer Shaft L: 40 cm, Stirrer Ø: 6 cm, Shaft Ø: 8 mm, 316L SS Low viscosity media at medium/high speed
18900073 Paddle Stirrer Shaft L: 40 cm, Stirrer Ø: 6.8 cm, Shaft Ø: 8 mm, 316L SS Gentle mixing at low and medium speed
18900074 Centrifugal Stirrer Shaft L: 40 cm, Stirrer Ø: 9 cm, Shaft Ø: 8 mm, 316L SS Blades open while speeding; for narrow-neck vessels
18900075 Propeller Stirrer (PTFE) Shaft L: 35 cm, Stirrer Ø: 6.5 cm, Shaft Ø: 8 mm, PTFE Standard stirring with high chemical resistance
18900077 Paddle Stirrer (PTFE) Shaft L: 35 cm, Stirrer Ø: 6.8 cm, Shaft Ø: 8 mm, PTFE Gentle mixing with high chemical resistance
18900478 Grand Propeller Stirrer Shaft L: 60 cm, Stirrer Ø: 10 cm, Shaft Ø: 8 mm, 316L SS High-volume stirring in large vessels
18900498 Grand Anchor Stirrer Shaft L: 60 cm, Stirrer Ø: 10 cm, Shaft Ø: 8 mm, 316L SS High viscosity fluids and precipitating mixtures
18900500 Grand Dissolving Stirrer Shaft L: 60 cm, Stirrer Ø: 10 cm, Shaft Ø: 8 mm, 316L SS Breaking down granules with strong shear
18900625 Flat-Blade Stirrer Shaft L: 40 cm, Stirrer Ø: 6 cm, Shaft Ø: 8 mm, 316L SS Medium speed stirring, low-to-medium viscosity
18900626 Radial-Flow Stirrer Shaft L: 40 cm, Stirrer Ø: 5 cm, Shaft Ø: 8 mm, 316L SS Gas-in-liquid dispersion and high-speed agitation
18900628 Spiral Stirrer Shaft L: 40 cm, Stirrer Ø: 5 cm, Shaft Ø: 8 mm, 316L SS Liquid homogenization and suspension treatment
Note: Stirring impellers feature standardized Ø 8 mm shafts compatible with all pass-through chuck models.
Overhead Stirring Capacity

100 L, 30 L, 50 L

Overhead Speed Range

10–400 / 20–2000 rpm, 50–2200 rpm

Overhead Max Torque

40 N·cm, 400 N·cm, 60 N·cm

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