Stainless steel carts for hospitals: instrument tables and case carts

A stainless steel cart is a wheeled trolley built from corrosion-resistant steel, usually grade 304, used in hospitals wherever surfaces are cleaned often, carry instruments or must tolerate strong disinfectants. The main medical types are utility carts, treatment and dressing trolleys, surgical instrument tables and Mayo trolleys, back tables, and closed case carts for moving instrument sets between sterile processing and the operating room.

This guide explains steel grades and build quality, the different stainless carts and tables used in clinical areas, and what to write into a specification so the cart you receive matches the one you approved.

Why choose a stainless steel medical cart?

Stainless steel is chosen for medical carts because it is non-porous, tolerates repeated wet cleaning and most hospital disinfectants, does not crack or stain like some plastics, and can carry heavy loads on a slim frame. It is the default in operating rooms, sterile processing (CSSD), laboratories and procedure rooms.

The trade-offs are weight, noise on hard floors, a cold clinical look on wards, and cost compared with ABS. For carts that move all day on wards, many hospitals choose ABS bodies on a steel frame instead.

Stainless steel grades: 304, 316 and 201

The grade matters more than the shine. Two carts that look identical can behave very differently after a year of chlorine wipes.

• 304 (18/8): about 18% chromium and 8% nickel. The standard for medical carts, tables and trays. Good resistance to common disinfectants and easy to weld and polish.
• 316: similar to 304 with 2–3% molybdenum added, giving better resistance to pitting from chlorides. Worth considering for coastal climates, wet areas or regular high-concentration chlorine use.
• 201: replaces part of the nickel with manganese. Cheaper, harder and more prone to rust spots and pitting. Some low-cost carts use it for frames or shelves, so state the grade for every part.

Ask for a material declaration or mill certificate for the grade used, and check whether tubes, shelves, castors' housings and fasteners are all the same grade.

Build quality to check

• Sheet and tube thickness, stated in mm (gauge numbers vary between systems)
• Welds that are continuous where liquids can collect, ground smooth and passivated
• Surface finish: brushed or polished, without sharp edges or crevices
• Shelf design: raised or rolled edges and guard rails to stop instruments sliding off
• Castors: diameter, brakes, and whether the castor housings are also corrosion resistant

Stainless steel utility carts and treatment trolleys

A stainless steel utility cart is an open two- or three-shelf trolley for moving supplies, instruments or equipment. Heavy-duty versions carry bulk items in CSSD or stores; lighter ones serve as procedure or dressing trolleys.

Keling's KL-TC037 Instrument Trolley is a three-tier stainless steel instrument trolley with protective side guard rails and four swivel castors, two with brakes, at 670 × 450 × 900 mm (about 26 × 18 × 35 in). The KL-TC039 Stainless Steel Trolley is a set of three nesting stainless steel trolleys in graduated sizes from 760 × 360 × 820 mm up to 1000 × 500 × 900 mm, useful where storage space is tight.

Stainless steel cart with drawers

A stainless steel cart with drawers adds lockable or open storage to the work surface, which suits treatment and dressing rounds. The KL-TC053 Medical Treatment Trolley treatment trolley has three tiers of shelving and two lockable drawers at mid-level, while a typical stainless dressing trolley adds a removable stainless steel basin and a hanging waste bucket to a two-tier frame with one drawer, as on Keling's dressing trolley range.

Surgical instrument tables and Mayo trolleys

A surgical instrument table holds instruments and supplies within the sterile field. The two most common forms:

• Instrument table or trolley: a flat, rectangular stainless steel table on castors, one or two tiers, often with guard rails. Used for instrument sets, basins and drapes.
• Mayo trolley (Mayo stand): a small tray on a height-adjustable column, positioned over or beside the patient so the scrub nurse can pass the instruments needed at that moment. Bases are often U-shaped or offset so they slide under the operating table.

Keling's KL-TC051 Mayo Trolley Mayo trolley has a 500 × 350 mm raised-edge tray, height adjustment from 870 to 1300 mm (about 34 to 51 in) and four 360-degree castors, two with brakes. The KL-TC048 Mayo Trolley is a fixed-height Mayo trolley with two instrument basins on top and a large lower shelf.

Surgical back table

A surgical back table is the largest instrument table in the operating room. It sits behind the scrub nurse and holds the full sterile setup: instrument trays, drapes, gowns, basins and supplies opened for the case. Back tables are usually long, single-surface stainless tables on castors, sized to the typical setup for the specialty.

When specifying, give the top dimensions that fit your largest standard tray setup plus drapes, a height compatible with your Mayo stands and scrub nurse working height, and a lower shelf if you want to store unopened supplies. Make sure the table fits between the operating table and the wall in your room layout; our operating room design and layout guide covers clearances, and the operating room equipment checklist lists the other items in the room.

Case carts for surgery

A case cart carries everything for one surgical case (instrument sets, supplies and sometimes implants) from sterile processing to the OR, and brings contaminated instruments back to decontamination after the case. Surgical case carts are usually stainless steel because they go through cart washers or heavy manual cleaning after each trip.

There are two main designs:

• Closed case carts with doors on one or both sides. They protect sterile items from dust and handling on the way out and contain contaminated items on the way back. They are the common choice when transport passes through public corridors or lifts.
• Open case carts with wire or solid shelves. Lighter and easier to load, but they need covers for transport outside restricted areas.

A storage and case cart system pairs case carts with matching storage shelving so pre-assembled cases can be staged in sterile storage. Plan cart width to fit your largest tray, the cart washer chamber and the doors and lifts on the route. Sterile processing staff should be involved in the decision; see our sterile processing department guide.

Autoclave instrument trays

Stainless steel instrument trays and sterilization trays complete the system. Perforated trays let steam reach instruments and help drying in the autoclave; solid trays are used for holding and carrying. Keling's KL-TC076 Stainless Steel Sterilization Tray stainless steel sterilization tray is available in four sizes from 150 × 100 × 45 mm to 300 × 200 × 50 mm, in perforated and non-perforated versions, with a matching cover.

Load trays according to the sterilizer's validated configurations and the instrument manufacturers' instructions. For more on steam sterilization, read our autoclave guide.

Caring for stainless steel carts

Stainless steel resists corrosion because of a thin chromium oxide layer on its surface. Most of the rust spots seen on hospital carts come from damage to that layer or from residues left on it, not from the steel itself failing.

Simple habits keep a stainless cart looking new for years:

• Clean with a neutral detergent first, then disinfect, rather than relying on disinfectant alone to lift soil.
• Wipe dry after wet cleaning, especially in corners, weld seams and under shelves where water collects.
• Do not use steel wool or carbon-steel brushes; they leave iron particles that rust on the surface.
• Rinse off chlorine-based and other aggressive products where the cart manufacturer recommends it.
• Inspect castors and brakes regularly; worn wheels make heavy steel carts hard to steer and stop.

If light surface rust appears, it can often be removed with a cleaner intended for stainless steel. Persistent pitting is a sign that the grade or finish does not suit the cleaning regime.

What to specify when buying stainless steel trolleys

Write the details into the tender so substitutes are easy to spot:

• Steel grade for frame, shelves and fittings (for example "all stainless parts grade 304")
• Sheet and tube thickness in mm
• Overall and shelf dimensions, number of tiers, guard rails on which sides
• Drawers: number, internal size, lock
• Load rating per shelf and in total
• Castor diameter, brake count, wheel material, corrosion-resistant housings
• Height range for adjustable models
• Surface finish and weld treatment
• Disinfectants and cleaning methods the cart must tolerate, including cart washers if used
• Documents: manufacturer's ISO 13485 certificate, material declaration, and the registration or conformity documents that apply to the model and destination country

Keling Medical builds stainless steel instrument, treatment, dressing and Mayo trolleys alongside ABS ward carts at its Yangzhou factory, under ISO 13485:2016. If you are importing, our guide on importing medical equipment from China covers inspection and shipping.

Next steps

Decide where stainless steel is genuinely needed (operating rooms, sterile processing, procedure rooms) and specify grade, thickness and castors for those carts in writing. See the full medical trolley range, or send your list of trolleys and quantities for a quotation and lead time.