Stir-Testers - Actual speeds are displayed and maintained by a synthetic tachogenerator. (Speed is kept within less than 1% of the base speed from no-load to more than 100% of full-load regardless of AC line voltage fluctuations of ±10%.)
- Viscosity measurement is easier thanks to a controller with a digital readout switchable between speed and torque.
- Data on shear stress, shear rate, velocity gradients, and viscosity is accumulated easily with external DC multi-volt signals for speed and torque (for strip or X-Y recorders) available through an output port on the rear of the control.
- Operator convenience and safety is increased with cord connections between drive motors and controls to allow control placement away from hostile environments.
| HST10 SERIES STIR-TESTER
The HST10 is available in direct-drive or geared models with a totally enclosed, 1/17 hp, permanent-magnet DC motor. Digital readout displays speed in rpm's and torque in gm-cm (kg-cm for geared motors). Front panel switch toggles between speed and torque. The HST10 includes a reversible drive motor with mounting bracket, controller, and the following accessories: 099D A210101 3-jaw, keyless chuck and arbor (with HST10N and HST210N only)
099D A260108 3-jaw, keyless chuck and arbor (for HST10 geared motors)
099D A210106 paddle
099D A210107 propeller
100D LC300 heavy-duty 90° clamp
Lab stand 099D A130150 is recommended to mount the HST10. Specifications
Lab bench case: 8"w x 8"d x 4.75"h
Motor bracket: 4.38"w x 4.38"d x 7"h, with 8" rod
Finish: Foxtip gray and charcoal. | 
| | Catalog Number | Description | Input Voltage | Max rpm | Torque lb-in | Torque kg-cm | Torque Nm | Product Weight (lbs) | | 099D HST10N | Direct drive, rpm/torque readout & X-Y output | 120 | 2500 | 1.5 | 1.73 | 0.17 | 14 | | 099D HST1006 | Similar to HST10N but with 6:1 gearmotor | 120 | 417 | 5.4 | 6.22 | 0.60 | 15 | | 099D HST1012 | Similar to HST10N but with 12:1 gearmotor | 120 | 208 | 12.0 | 13.80 | 1.32 | 15 | | 099D HST210N | Direct drive, rpm/torque readout & X-Y output | 240 | 2500 | 1.5 | 1.73 | 0.17 | 14 | | 099D HST21006 | Similar to HST210N but with 6:1 gearmotor | 240 | 417 | 5.4 | 6.22 | 0.60 | 15 | | 099D HST21012 | Similar to HST210N but with 12:1 gearmotor | 240 | 208 | 12.0 | 13.80 | 1.32 | 15 |
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HST20 SERIES STIR-TESTER
The HST20 lets you maintain stirring speed with a 1/8 hp, totally enclosed, permanent-magnet DC motor. Digital readout displays speed in rpm's and torque in oz-in. Front panel switch toggles between speed and torque. The HST20 a reversible drive motor with mounting bracket, controller, and the following accessories:
099D A260100 - 3-jaw, keyless chuck and arbor (HST20N & HST220N only)
099D A260106 - propeller
100D LC300 - heavy-duty 90° clamp
099D A260200 - 3-jaw, keyless chuck and arbor (for HST20 geared motors).
Lab stand 099D A130150 is recommended to mount the HST20. Specifications
Lab bench case: 8"w x 8"d x 4.75"h
Motor bracket: 4.5"w x 4.5"d x 9.5"h, with 8.5" rod
Finish: Foxtip gray and charcoal. |
 | | Catalog Number | Description | Input Voltage | Max rpm | Torque lb-in | Torque kg-cm | Torque Nm | Product Weight (lbs) | | 099D HST20N | Direct drive, rpm/torque readout & X-Y output | 120 | 2500 | 3.1 | 3.57 | 0.34 | 16 | | 099D HST2004 | Similar to HST20N but with 4:1 gearmotor | 120 | 660 | 6.0 | 6.90 | 0.66 | 20 | | 099D HST20 | Similar to HST20N but with 9:1 gearmotor | 120 | 266 | 21.0 | 24.20 | 2.31 | 20 | | 099D HST2021 | Similar to HST20N but with 20:1 gearmotor | 120 | 125 | 46.0 | 53.00 | 5.06 | 20 | | 099D HST2044 | Similar to HST20N but with 44:1 gearmotor | 120 | 57 | 96.0 | 111.00 | 10.56 | 20 | | 099D HST220N | Direct drive, rpm/torque readout & X-Y output | 240 | 2500 | 3.1 | 3.57 | 0.34 | 16 | | 099D HST22004 | Similar to HST220N but with 4:1 gearmotor | 240 | 660 | 6.0 | 6.90 | 0.66 | 20 | | 099D HST220 | Similar to HST220N but with 9:1 gearmotor | 240 | 266 | 21.0 | 24.20 | 2.31 | 20 | | 099D HST22021 | Similar to HST220N but with 20:1 gearmotor | 240 | 125 | 46.0 | 53.00 | 5.06 | 20 | | 099D HST22044 | Similar to HST220N but with 44:1 gearmotor | 240 | 57 | 96.0 | 111.00 | 10.56 | 20 |
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HST30 SERIES STIR-TESTER
This model provides more power for heavy-duty applications with a 1/4 hp, totally enclosed, permanent-magnet DC motor. Digital readout displays speed in rpm's and torque in oz-in. Front panel switch toggles between speed and torque. The HST30 includes a reversible drive motor with mounting bracket, controller, and the following accessories:
099D A260108 - 3-jaw, keyless chuck and arbor for HST30N and HST230N only
099D A260275 - 3-jaw, keyless chuck and arbor (for HST30 geared motors)
099D A260106 - propeller
100D LC300 - heavy-duty 90° clamp
Lab stand 099D A130150 is recommended to mount the HST30. Specifications
Lab bench case: 8"w x 8"d x 4.75"h
Motor bracket: 5"w x 5.5"d x 10"h, with 8.5" rod
Finish: Foxtip gray and charcoal. |  | | Catalog Number | Description | Input Voltage | Max rpm | Torque lb-in | Torque kg-cm | Torque Nm | Product Weight (lbs) | | 099D HST30N | Direct drive, rpm/torque readout & X-Y output | 120 | 2500 | 6.3 | 7.3 | 0.70 | 20 | | 099D HST3005 | Similar to HST30N but with 5:1 gearmotor | 120 | 500 | 25.0 | 28.8 | 2.75 | 24 | | 099D HST3010 | Similar to HST30N but with 10:1 gearmotor | 120 | 250 | 45.0 | 51.8 | 4.95 | 24 | | 099D HST3020 | Similar to HST30N but with 20:1 gearmotor | 120 | 125 | 90.0 | 103.7 | 9.90 | 24 | | 099D HST230N | Direct drive, rpm/torque readout & X-Y output | 240 | 2500 | 6.3 | 7.3 | 0.70 | 20 | | 099D HST23005 | Similar to HST230N but with 5:1 gearmotor | 240 | 500 | 25.0 | 28.8 | 2.75 | 24 | | 099D HST23010 | Similar to HST230N but with 10:1 gearmotor | 240 | 250 | 450 | 51.8 | 4.95 | 24 | | 099D HST23020 | Similar to HST230N but with 20:1 gearmotor | 240 | 125 | 900 | 103.7 | 9.90 | 24 |
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