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.










