Four Prong Laboratory Clamp
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Product Code : SCL-CL-12014
Four Prong Laboratory Clamp (SKU SCL-CL-12014), also called a four-finger clamp, holds large, tapered or irregular glass vessels on a retort stand. Its two pairs of fingers are adjusted separately, so it centres on wide-necked flasks, columns and condensers that a two-jaw clamp grips poorly. It suits distillation and extraction work in school, college and pharmacy laboratories. Science Lab Supplies, based in Ambala, India, can quote it for schools, colleges, training institutes, contractors and distributors alike.
Specifications
Each specification of the four-finger clamp appears as its own row below. In short, a powder-coated die-cast zinc or aluminium alloy head sits on a 200 mm grade 304 stainless steel rod of 10 mm diameter, and two thumbscrews each move one pair of PVC-sleeved fingers to open the jaws from 15 mm to 85 mm.
| Specification | Value |
|---|---|
| SKU | SCL-CL-12014 |
| Also known as | Four-finger clamp |
| Head material | Die-cast zinc or aluminium alloy |
| Head finish | Powder coated |
| Extension rod material | Grade 304 stainless steel |
| Extension rod length | 200 mm |
| Extension rod diameter | 10 mm |
| Minimum jaw opening | 15 mm |
| Maximum jaw opening | 85 mm |
| Fingers | Four, in two independently adjustable pairs |
| Finger sleeves | Heavy-duty non-slip vinyl (PVC) |
| Adjustment | Dual threaded steel thumbscrews |
| Spare sleeves | 4 replacement vinyl finger sleeves |
| Pack quantity | 2 clamp units |
| Documentation | Apparatus set-up and alignment guide |
| Supplied by | Science Lab Supplies, Ambala, India |
Applications and Experiments for the Four Prong Laboratory Clamp
The clamp suits vessels too wide or too awkwardly shaped for a standard clamp. It can support condensers and flasks in distillation, extraction columns and large separating funnels, and fits Class 11–12 purification practicals, B.Sc. and M.Sc. organic chemistry labs and pharmacy college laboratories.
- Holding Liebig or Allihn condensers in simple and fractional distillation, for example a Liebig Condenser for Distillation of Water.
- Supporting Soxhlet extractors and reaction columns above a heating mantle raised on a Laboratory Jack.
- Gripping a Round-bottom Flask, wide-necked flasks and separating funnels during solvent extraction.
The vinyl sleeves keep metal off the glass and cushion a hot vessel as it expands; keep them out of the flame and tighten the thumbscrews only until the vessel is held firmly.
Standard Scope of Supply
The pack contains two heavy-duty four-finger clamp units, four replacement vinyl finger sleeves and an apparatus set-up and alignment guide. A boss head is needed to fix the clamp to a stand; it is a separate item that can go on the same quotation.
Packing, MOQ and Lead Time
Ask for one pack or a quantity for every distillation bench in the lab. The quotation sets out the packing, delivery time and price for that quantity, and boss heads, stands or other laboratory distillation apparatus in India can be quoted with it.
With an Importer-Exporter Code as a registered exporter, Science Lab Supplies is able to ship to buyers in Ghana, Ethiopia, Tanzania, Uganda, the UAE and Saudi Arabia. Describe your distillation set-up through the contact page, or collect the clamps and their stands in the enquiry cart; college and government buyers can follow the lab tender page.
Frequently Asked Questions
What is the difference between a four prong and a three prong clamp?
Both open from 15 mm to 85 mm on a 200 mm rod. The four prong model grips with four fingers in two adjustable pairs, which spreads the pressure on large or tapered vessels; the three prong model holds with three points of contact.
How do I attach it to a retort stand?
Slide the 10 mm extension rod into a boss head fixed on the stand rod, set the height and angle, then tighten the boss head thumbscrew.
Can the vinyl sleeves be replaced?
Yes. Each pack of two clamps includes four replacement vinyl finger sleeves, so a worn or heat-damaged sleeve can be swapped without replacing the whole clamp.
Who supplies the Four Prong Laboratory Clamp?
Laboratories, colleges and dealers can obtain it from Science Lab Supplies of Ambala, India. One quotation can combine the clamps with stands, boss heads or glassware from the same list, and it comes directly from the company.
Related Distillation Support Equipment
A four prong clamp is one part of a support assembly. The items below complete it with a stand, a connector, a three prong clamp, the glassware it holds and a heater, and each of them can go on one quotation with the clamps.
- Laboratory Retort Stand — 600 mm (24 in) stainless steel rod screwed into a cast iron base.
- Boss Head Clamp — joins the 10 mm clamp rod to the stand at a fixed 90 degrees.
- Three Prong Glassware Holding Clamp — three-point grip over the same 15–85 mm jaw range.
- Liebig Condenser 200mm — borosilicate condenser with a narrow 200 mm jacket.
- Distillation Flask — side-arm flask offered from 100 mL to 500 mL.
- Separating Funnel (Separator) — 125 ml spherical glass funnel with tap and frosted stopper.
- Flask Electric Heater — glass-yarn heating basket for a 500 ml flask.
- Ring Stand Set with Accessories — base, rod, burette/flask clamp with boss head, and support rings.
Explore the whole Chemistry Lab range, the Laboratory Flasks range, or all school lab equipment.
Last updated: 9 October 2026
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