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  • A photograph of a 20650 6 place combo heating mantle unit w/loaded flasks.
  • A photograph of the front of a 20650 6 place combo heating mantle unit.
  • A photograph of the back of a 20650 6 place combo heating mantle unit.
  • A photograph of the front of a 20650 3 place combo heating mantle unit.
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3 or 6 Place Combo Heating Mantle Unit

Item #: 20650
Quantity:
$2,525.00

Normal Availability: 4-5 business days

Product Description

Glas-Col's combination mantles are the best choice for repetitive extracting, refluxing, and distilling procedures in labs of the food, textile fiber, water and waste-water, petroleum, and many other industries. In general, the lower temperature (400 °C max) RX series is used with solvents common to Soxhlet extractions and RJ units  (600 °C max) are used for refluxing aqueous solutions. Features of both series include:

  • Lower profile for space-saving convenience.
  • Revolutionary heating element container system makes replacing burned-out elements a simple, five minute task.
  • Element containers act as spill containment chambers to capture chemicals from spillage or boil-over .
  • Clear anodized aluminum cabinet with black Teflon¨ resin coated stainless steel top for chemical resistance .
  • Offered in two space-saving configurations; six-place for 100-300 ml flasks and three-place for 500-1,000 ml flasks.
  • Available in low-temperature RX version for use with common solvents and high- temperature RJ version for use with refluxing aqueous solutions.
  • The ideal mantle for Kjeldahl, Soxhlet, and other extraction procedures.

Each six-place Combo is furnished with six spring-type glassware clamps, and each three-place unit contains three. The clamps attach to one of the horizontal support rods.  The six place units are 29-1/4"w x 9-1/2"d x 5-1/4"h and the three place units are 24"w x 11-1/4"d x 6-1/4"h.

Two Series RL control choices are available (SOLD SEPARATELY): a percentage timer (item # 20683) or a proportional voltage (item # 20687) control. The percentage-timer version pulses full-line voltage to each heating position according to the dial setting. The proportional-voltage version supplies a constant, steady-state voltage to each position. The six-place controls are actually two units that can be mounted together or separately. The cord-connected controls allow placement at a convenient location for the operator.

Replacement elements are also available (item #'s 20691-20694). Keep one or two on hand as spares to avoid downtime in the event of failure.

6-Place Combo Mantle Elements
Flask Size (mL) Max. Diameter (in) Bottom Rating Per Position Replacement Element Number
100/125 2.75 Flat 85W @ 120V
85W @ 240V
140W @ 120V
140W @ 240V
20691-A
20691-A
20692-A
20692-E
Round 85W @ 120V
85W @ 240V
140W @ 120V
140W @ 240V
20691-B
20691-B
20692-B
20692-F
250/300 3.41 Flat 125W @ 120V
125W @ 240V
210W @ 120V
210W @ 240V
20691-C
20691-E
20692-C
20692-G
Round 125W @ 120V
125W @ 240V
210W @ 120V
210W @ 240V
20691-D
20691-F
20692-D
20692-H
3-Place Combo Mantle Elements
Flask Size (mL) Max. Diameter (in) Bottom Rating Per Position Replacement Element Number
500 4.06 Flat 180W @ 120V
180W @ 240V
300W @ 120V
300W @ 240V
20693-A
20693-F
20694-A
20694-E
3.98 Round 180W @ 120V
180W @ 240V
300W @ 120V
300W @ 240V
20693-B
20693-G
20694-B
20694-F
650 4.25 Round 200W @ 120V
200W @ 240V
325W @ 120V
325W @ 240V
20693-C
20693-H
20694-C
20694-G
800 4.56 Round 225W @ 120V
225W @ 240V
375W @ 120V
375W @ 240V
20693-D
20693-I
20694-D
20694-H
1,000 5.12 Round 290W @ 120V
290W @ 240V
450W @ 240V
20693-E
20693-J
20694-I

Other Details

Manufactured in: USA

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