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NEWSA laboratory bench is the central working platform of a laboratory, providing a stable, clean and durable surface for experiments, sample preparation, measurement and equipment placement. Unlike an office desk, a laboratory bench is engineered around demanding conditions: heavy instruments, aggressive chemicals, thermal cycling and frequent cleaning. It combines two functional parts, the frame or carcass that carries the load and the worktop that defines the usable surface, and each has to be matched to the activities performed on it.
Choosing the wrong type produces problems quickly. A worktop that cannot withstand a solvent will pit and stain. A frame with insufficient stiffness will sag under a fume cupboard or an autoclave. Storage that cannot be removed quickly will obstruct cleaning. This guide explains the main bench types, the worktop options and the selection criteria that matter in real laboratories, so purchasing decisions rest on measured performance rather than appearance.
Steel frame benches form the backbone of most laboratory layouts because powder coated steel offers an excellent strength to weight ratio, long service life and straightforward repair. Frames are typically fabricated from rectangular hollow section or formed channel sections, joined by welded or bolted nodes, then coated to resist corrosion from cleaning agents and laboratory vapours. Modular uprights with regularly spaced slots or holes allow shelves, service posts and mobile under-bench units to be added without replacing the frame.
The floor frame should be levelled with adjustable feet, because a bench that rocks or twists develops joint and worktop problems quickly. Hinged door units and removable drawer boxes should be specified so under-bench services can be reached. Steel is also the most practical choice when heavy equipment such as centrifuges or fume cupboards must be supported, since section depth can be increased without changing the footprint.
| Frame option | Strength | Best suited to | Main limitation |
|---|---|---|---|
| Powder coated steel | High, adjustable section | General purpose and heavy instrument benches | Joints loosen under repeated vibration |
| Stainless steel | High, excellent corrosion resistance | Wet areas and wash-down rooms | Higher material cost |
| Phenolic or resin carcass | Moderate | Chemical handling areas | Less rigid for very heavy equipment |
| Sealed wood core carcass | Moderate to good | Teaching and preparation rooms | Unsuitable for strong acid or wet exposure |
The worktop is the most visible and most frequently replaced component, and its material determines chemical resistance, cleanability and cost. Epoxy resin tops are formed around a core and cured in a mould, producing a seamless surface with excellent resistance to acids, alkalis, solvents and heat. Phenolic resin tops offer comparable chemical performance with a harder, more scratch resistant surface, often specified where heavy abrasion or frequent solvent handling is expected. Wood core tops, sealed with epoxy or melamine, are economical in general purpose areas, but they tolerate strong acids, prolonged water exposure and cutting impact far less well.
Worktops should be specified with a raised perimeter lip where containment is needed, a coved or dished sink area, drilled service holes and a thickness matched to the span between frame supports. State the maximum working temperature, the cleaning chemistry in use and whether hot vessels will rest on the surface.
| Worktop | Chemical resistance | Cleaning | Typical use |
|---|---|---|---|
| Epoxy resin | Very good against most acids, alkalis and solvents | Seamless, easy to wipe down | Analytical and chemical handling benches |
| Phenolic resin | Very good, hard wearing surface | Resists marking and abrasion | Bench work with frequent solvent use |
| Sealed wood core | Limited, particularly with strong acids | Economical, less tolerant of heat | Teaching and general preparation rooms |
| Stainless steel | Good, may stain with some acids | Very easy to sanitise | Wet, food and pharmaceutical areas |
Flexible laboratory layouts often need benches that can be repositioned or adapted to different users and tasks. Mobile benches are mounted on locking castors, usually a braked four wheel or six wheel arrangement, so heavy instruments can be moved for cleaning or service while still transferring load reliably into the frame. They need deep, well spaced castors to cross thresholds and cables without tipping, and should be pushed from the frame rather than the worktop edge, where the load can damage the lip or fittings. An anti tip bracket is worth specifying in teaching spaces.
Height adjustable benches use a lifting column mechanism, either a manual screw, a gas strut column or a powered actuator, to move the working height through a defined range. They are valuable in shared laboratories and where users alternate between seated and standing work. The key selection points are the lifting range, the load rating at every position, travel speed and the stability of the top while moving. Powered models need a suitable power supply planned into the electrical layout rather than added later.
Sizing a laboratory bench starts with an honest picture of what will be placed on it. Loads are frequently underestimated because instrument weights are quoted without cables, sample vessels, extraction hoods or the storage fitted below. Calculate the maximum distributed load and the worst single point load, for example a compressed gas cylinder or a stack of solvent bottles, then select a frame and top rated above those figures. Deflection often matters more than static strength: a worktop that dips a few millimetres under load will disturb sensitive balances and fatigue joints.
Heavy equipment should sit on the frame or on a reinforced sub-top rather than on an unsupported span. Typical sections run around 900 to 1200 mm deep and 1800 mm long, with longer runs divided by intermediate supports. Height should match the users and the task: seated work at a lower section, standing work at a higher section, and clear knee space where stools are used. Record the planned load and working height on the drawing so that installers and end users share the same intent.
Chemical resistance has to be judged against what is actually used in the room, not against a generic chart. Solvents, acids, alkalis, oxidising agents and disinfectants differ enormously in their effect on epoxy, phenolic, stainless and timber surfaces, and a formulation change can alter the result. Spills are also concentrated, so the ability to remove one quickly matters as much as the initial resistance rating.
Cleanability is a safety attribute. Smooth, seamless, non porous surfaces allow residues to be removed without solvents that soften the coating, and edge profiles that avoid open joints reduce the places where contamination accumulates. Layouts should keep a clear route for spill containment and waste handling. Stability matters too: restraining rails, splashbacks and secure storage of heavy reagents prevent items falling from the worktop, a common cause of laboratory injury and cross contamination.
Storage determines how a bench functions day to day. Under bench cabinets should be modular so that drawers, door units and open shelves can be combined to suit the workflow, and the carcass should be easy to remove so service pipes, gas outlets and sockets can be reached. Drawer boxes should run on smooth slides with a positive stop, and be sized so heavy glassware is carried low and close to the front face.
Above bench storage should be planned on the same modular grid as the frame. Shelving must not interfere with fume cupboards, extraction arms, task lighting or tall instruments, and it should not place chemicals directly above a heat source. A wall mounted service rail with gas taps, water outlets, electrical sockets and data points is often more practical than routing services through the worktop. Compatibility between accessories and the bench frame should be checked before ordering, since suppliers frequently offer a similar but differently sized system that will not interchange.
Laboratory benches are usually installed after the floor, walls and building services are complete, and planning the sequence avoids delays and damage. Bench runs should allow service access behind, adequate clearances in aisles, and the opening envelopes required for doors, fume cupboards and emergency exits. Service points for water, gas, electricity and drainage are generally better located in a service spine against the wall rather than below the bench, keeping the under bench volume free for storage and cleaning.
Installation quality has a direct effect on service life. Frames must be levelled on the finished floor, fixings should suit the floor construction, and units must be checked for square and rigid alignment before worktops are fitted. Moving a bench takes two people and proper lifting points. Compliance is treated here as general design guidance: bench heights, aisle widths, load limits, ventilation and chemical storage should be reviewed against the applicable national standards, local building regulations and the requirements of the accreditation body for the work carried out, with input from the safety officer and facilities team.
A structured specification protects both buyer and supplier. Record the intended activities, the maximum working temperature and the chemicals that will be used, the instrument loads, the required clearances for services and extraction, the storage volume needed under and over the bench, the number of users and the preferred working heights. Request a sample of the proposed worktop, and confirm load ratings, deflection figures, warranty terms, delivery lead time and installation scope in writing. Confirm that spare top panels, drawer boxes and castors are available within the same system.
The main cost drivers are worktop material and thickness, frame section size and finish, the quantity of under bench storage, the number and type of service points, mobile and height adjustable mechanisms, and the installation and building service work behind the bench. Low specification is rarely cheapest over the life of a bench, because a thinner top or a lighter frame may save at purchase and cost more through premature replacement. Comparing quotations against one written specification makes the comparison meaningful and shortens evaluation.
Both give strong chemical resistance, so the decision usually rests on usage pattern. Phenolic resin has a harder surface and resists abrasion and marking, which suits heavy chemical handling and frequent solvent wiping. Epoxy resin offers a more forgiving surface, better impact toughness and a seamless profile with integrated sinks, which is often easier to clean around. Ask your supplier for resistance data covering your own cleaning agents.
Specify above your calculated worst case, not the average. Add up the weight of instruments, containers, stored stock below the worktop and any service post, then allow a sensible margin for future equipment. Concentrated point loads deserve attention, since a few heavy items can deflect a long unsupported span even when total weight is unremarkable. Record the figures on the order.
They can be, provided the bench is designed for the load and the castors are correctly rated. Deep, wide castors with brakes transfer load evenly and reduce tipping risk, and an anti tip restraint is worth adding in teaching spaces. Push from the frame rather than the worktop edge. For very heavy equipment, a fixed bench with a reinforced top is the safer choice.
Usually yes, provided the bench was supplied as a modular system and the worktop can be removed without damage. Moving means emptying storage, removing the top in sections, protecting the coating in transit and re levelling the frame on the new floor. Gas, water and data connections must be disconnected by qualified personnel, and alignment rechecked afterwards.
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