MACHINE DETAILS
Caleva Model 20 Benchtop Laboratory Extruder
Bench Top Laboratory Unit for Extruding Small Quanitites of Pharmaceutical Compounds
The Caleva Model 20 Extruder is a benchtop screen extruder with a lot of extra capabilities.
A laboratory bench top screen (sometimes referred to as a "basket type") extruder designed for pharmaceutical R&D process development work in the laboratory. It is designed and built so that it will replicate production extrusion on the laboratory bench top. Extruder screens are identical with production machines and scale up problems can be minimized.
The unique Caleva system of roller extruders is designed to impart very little work to the product as it is processed. This reduces problems caused by overheating or drying out of the material.
Screens of different apertures and heights can be supplied to complement any development program. The diameter of spheroids produced is largely determined by the diameter of the extrudate.
The Extruder 20 has a simple operating structure and a small footprint to fit easily on the bench top. Product recovery (useful extrudate produced as a % of material added to the extruder) is very high and there are few dead spaces where material can collect. The achievable throughput is dependent on the properties of the material being extruded and the screen size used. The effective minimum load requirement is about 30g. Although the Extruder 20 is not designed as a production extruder for continuous use, some materials have been extruded at rates up to 25kg per hour.
Loading: Manual, with feed tray positioned above inlet
Overall Dimensions (cm): 40x25x50
Weight: 25 Kg
Contact Parts: 316 SS, food-grade plastic, and Acrylic
Controls: Front mounted panel with STOP/START buttons, POWER ON, MOTOR ON indicators. A built in tachometer shows extruder rotation speed. Speed is set by an infinitely variable potentiometer.
Processing Capacity: Minimum load is about 30-50g. Output can be up to 25kg per hour, depending on characteristics of the material being extruded.
Standard Extrusion Screen: 150mm diameter with holes 1mm diameter x 1mm deep, however, a wide range of screen hole sizes are available. Please contact us for details.
Motor: 250W
Utilities: Electric 115 VAC or to user requirements
THE CALEVA MULTI BOWL SPHERONIZER MODEL 120
A Laboratory Bench Top Spheronizer for Spheronizing Pharmaceutical Compounds
The Caleva Multi-Bowl Spheronizer has four different interchangeable spheronizer bowls which can be used on the same base to spheronize a wide range of batch sizes with a single apparatus. By using the appropriate bowls, it may be possible to process batches ranging in size from 1g to 1kg.
Disks and inserts made of 316 stainless steel or FDA approved plastic are inserted into the 120mm bowl to acheive effective spheronization diameters of 60mm and 85mm.
The 250mm bowl is constructed of 316 stainless steel. The 60 and 85mm inserts are available in 316 stainless steel or FDA approved plastic.
Use the appropriate Bowl Kit or Bowl Insert depending on your batch size:
Batch Size: Use:
1g to 5g 60 mm ⌀ insert
5g to 15g 85 mm ⌀ insert
10g to 150g 120 mm ⌀ Bowl Kit
150g to 1 Kg 250 mm ⌀ Bowl Kit
Loading: Manual
Overall Dimensions (mm): 489W x 353D x 496H
Weight: 25-45 kg
Contact Parts: 316 SS, food-grade plastic, and Acrylic
Controls: Front Mounted including: Electronic speed control by means of ten (10) turn potentiometer with LED digital RPM display, Power/Motor ON indicator lights, START/STOP push button, and emergency E-STOP push button.
Manual and Automatic Operation: Electronic timer and pushbutton controls for spheronization time and product discharge. Automatic mode permits the operator-defined process times. Auto/Manual selector for timer control when required.
Cycle Time: Approx. 4 min./batch
Processing Capacity: 1-5 g (60mm ⌀ Bowl Insert), 5-15 g (85mm ⌀ Bowl Insert), 10-130 g (120mm ⌀ Bowl Kit), 100g-1 Kg (250mm ⌀ Bowl Kit)
Disc Speed: 600-3000 RPM
Motor: 180 W
Utilities: Electric: 115 VAC; 5-6 Bar compressed air
