Skip to content
Need Help? Call us on 0861 777 876 or email info@smartlabs.co.za — We're here to assist!
Need Help? Call us on 0861 777 876 or email info@smartlabs.co.za — We're here to assist!

Lab Clamps & Boss Heads

Lab clamps and boss heads are structural essentials in pharmaceutical production labs, chemical research departments, analytical testing facilities, and school chemistry classrooms across South Africa. SmartLabs stocks retort clamps, burette clamps, retort rings, test tube holders, and Keck glassware joint clips for professional and educational laboratory use, from R32 for a wire test tube holder to R315 for a heavy-duty adjustable retort clamp with bosshead.

How to choose the right clamp

In a professional lab setting, rubber jaw retort clamps are the standard choice for securing glassware: they grip without cracking the glass, even under reflux or distillation conditions. Cork jaw clamps handle irregular-shaped components. For titration work, a double burette clamp holds two burettes upright on a single stand, keeping the bench clear during high-throughput analytical runs. Keck clips are essential in distillation and reflux setups to lock ground-glass joints and prevent separation under pressure or heat.

Frequently asked questions

What is a boss head used for?

A boss head connects a clamp or retort ring to a retort stand rod, locking at any height and angle. It is the key component that makes a retort stand adaptable to any apparatus configuration.

What is the difference between a burette clamp and a retort clamp?

A burette clamp holds one or two burettes vertically on a stand during titration. A retort clamp is a general-purpose clamp for supporting flasks, condensers, columns, and cylindrical glassware.

Can you supply clamps for a full laboratory fit-out?

Yes. Contact SmartLabs for bulk pricing on retort clamps, burette clamps, and boss heads for professional lab setups and refurbishments.

Filters

R
R
Burette Clamp - Aluminium
Burette Clamp - Aluminium
R 155.00 - R 235.00
R 155.00 - R 235.00
R 155.00 - R 235.00
R 155.00

Aluminium Burette Clamps

The Aluminium Burette Clamp from SmartLabs is designed to hold burettes securely during titrations and other laboratory experiments. Available in b...

View full details
R 155.00 - R 235.00
R 155.00 - R 235.00
R 155.00 - R 235.00
R 155.00
Beaker Chain Clamp 40-145 mm | SmartLabs South Africa
R 300.00 - R 300.00
R 300.00
R 300.00 - R 300.00
R 300.00

Beaker Chain Clamp

Secure your glassware with confidence using the Beaker Chain Clamp 40-145 mm from SmartLabs. This adjustable chain clamp is engineered to hold beak...

View full details
R 300.00 - R 300.00
R 300.00
R 300.00 - R 300.00
R 300.00
Burette Clamp - Die Cast
Burette Clamp - Die Cast
R 162.78 - R 265.82
R 162.78 - R 265.82
R 162.78 - R 265.82
R 162.78

Burette Clamp - Die Cast

Burette Clamp - Die Cast   This high-quality burette clamp made from cast metal, includes a built-in boss head.  Available as a single or double cl...

View full details
R 162.78 - R 265.82
R 162.78 - R 265.82
R 162.78 - R 265.82
R 162.78
Burette Clamp Polypropylene
Burette Clamp Polypropylene
R 55.00 - R 135.00
R 55.00 - R 135.00
R 55.00 - R 135.00
R 55.00

Burette Clamp Polypropylene

Burette Clamp  Polypropylene burette clamp with a single or double clamp to select from. The clamps come with easy-to-change wedges that hold rods...

View full details
R 55.00 - R 135.00
R 55.00 - R 135.00
R 55.00 - R 135.00
R 55.00
Funnel Holder - PP
R 70.00 - R 70.00
R 70.00
R 70.00 - R 70.00
R 70.00

Funnel Holder - PP

Funnel Holder - PP Polypropylene, these corrosion free funnel holders can hold funnels with 75mm to 150mm diameter.  The extra plate provided can b...

View full details
R 70.00 - R 70.00
R 70.00
R 70.00 - R 70.00
R 70.00
Interchangeable Glassware Joint Clips (Kech Clips)
Interchangeable Glassware Joint Clips (Kech Clips)
R 65.00 - R 299.00
R 65.00 - R 299.00
R 65.00 - R 299.00
R 65.00

Interchangeable Glassware Joint Clips (Kech Clips)

Interchangeable Glassware Joint Clips (Kech Clips) Interchangeable glassware joint clips designed to securely hold interchangeable glassware in pla...

View full details
R 65.00 - R 299.00
R 65.00 - R 299.00
R 65.00 - R 299.00
R 65.00
Retort Clamp with Bosshead Rubber Jaws - Adjustable
R 300.00 - R 300.00
R 300.00
R 300.00 - R 300.00
R 300.00

Retort Clamp with Bosshead Rubber Jaws - Adjustable

Retort Clamp with Bosshead, Rubber Jaws - Adjustable Diecasted alloy clamp retort, PVC coated jaws with boss head which accomodates rods up to 15mm...

View full details
R 300.00 - R 300.00
R 300.00
R 300.00 - R 300.00
R 300.00
Retort Clamp with Bosshead, Cork Jaws - Adjustable
R 315.00 - R 315.00
R 315.00
R 315.00 - R 315.00
R 315.00

Retort Clamp with Bosshead, Cork Jaws - Adjustable

Retort Clamp with Bosshead, Cork Jaws - Adjustable Diecasted alloy clamp retort, cork lined jaws with bosshead which accommodates rods up to 15 mm ...

View full details
R 315.00 - R 315.00
R 315.00
R 315.00 - R 315.00
R 315.00
Retort Clamp with Rod - Cork Jaws
R 170.00 - R 170.00
R 170.00
R 170.00 - R 170.00
R 170.00

Retort Clamp with Rod - Cork Jaws

Retort Clamp with Rod - Cork Jaws This retort clamp is perfect for holding lab equipment in place during delicate experiments. The four prongs on t...

View full details
R 170.00 - R 170.00
R 170.00
R 170.00 - R 170.00
R 170.00
Retort Clamp, 3 Prong Rubber Jaws
R 157.00 - R 157.00
R 157.00
R 157.00 - R 157.00
R 157.00

Retort Clamp, 3 Prong Rubber Jaws

Retort Clamp, 3 Prong Rubber Jaws PVC coated diecast jaw Retort Clamp with clamping tommy-bar screwthrough swivels, mounted on 13.5 cm rod without ...

View full details
R 157.00 - R 157.00
R 157.00
R 157.00 - R 157.00
R 157.00
Retort Ring
R 70.00 - R 115.00
R 70.00 - R 115.00
R 70.00 - R 115.00
R 70.00

Retort Ring

Retort Ring A Retort ring can be used to hold various different glassware, but it is mainly used for separatory funnels, round bottom flasks and si...

View full details
R 70.00 - R 115.00
R 70.00 - R 115.00
R 70.00 - R 115.00
R 70.00
Retort Ring with Bosshead
Retort Ring with Bosshead
R 125.00 - R 195.00
R 125.00 - R 195.00
R 125.00 - R 195.00
R 125.00

Retort Ring with Bosshead

Retort Ring with Bosshead A Retort ring can be used to hold various different glassware, but it is mainly used for separatory funnels, round bottom...

View full details
R 125.00 - R 195.00
R 125.00 - R 195.00
R 125.00 - R 195.00
R 125.00
Retort Ring with Bosshead - Powder Coated
R 65.00 - R 75.00
R 65.00 - R 75.00
R 65.00 - R 75.00
R 65.00

Retort Ring with Bosshead - Powder Coated

Retort Ring with Bosshead - Powder Coated A Retort ring can be used to hold various different glassware, but it is mainly used for separatory funne...

View full details
R 65.00 - R 75.00
R 65.00 - R 75.00
R 65.00 - R 75.00
R 65.00
Separatory Funnel Holder
R 60.00 - R 60.00
R 60.00
R 60.00 - R 60.00
R 60.00

Separating Funnel Holder Clamp

Secure your separating funnels with confidence using this reliable funnel holder from SmartLabs. Designed to keep glassware stable during liquid-li...

View full details
R 60.00 - R 60.00
R 60.00
R 60.00 - R 60.00
R 60.00
Stainless Steel Keck Clips - Joint Clips
R 42.00 - R 125.00
R 42.00 - R 125.00
R 42.00 - R 125.00
R 42.00

Stainless Steel Keck Clips - Joint Clips

Stainless Steel Keck Clip Keck Clips are used to keep ground glass adapters from slipping out of their joints. They help eliminate the most common ...

View full details
R 42.00 - R 125.00
R 42.00 - R 125.00
R 42.00 - R 125.00
R 42.00
Test Tube Holder - Wire
R 32.00 - R 32.00
R 32.00
R 32.00 - R 32.00
R 32.00

Test Tube Holder - Wire

Test Tube Holder - Wire Economically priced, maximally functional plated spring steel wire holder with finger grip. The jaws will accept tubes up t...

View full details
R 32.00 - R 32.00
R 32.00
R 32.00 - R 32.00
R 32.00