Environmental Chambers and Space Simulation Systems

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KDL Cart Loaded  Burn-in and Stress Screening Chambers Literature Link

KDL Cart Loaded  Burn-in and Stress Screening Chambers Literature Link

Roll-in, Cart Loaded, Stress Screening Chambers

KDL Roll-in Cart Stress Screening Chamber, 2 Bay

Pre-loaded and electronically fixtured carts are easily rolled into a Bemco KDL, Burn-in or Rapid Temperature Cycling Chamber. All models in this series are modular. They are designed to be placed together to form up to a six bay testing facility with a control console between every two bays.

The Bemco KDL series is designed for production testing of electronic circuit boards and completed electronic systems. They accept Bemco KDLC Carts that have a working area of 42” wide by 60” high by 48” deep suspended on insulated runners and casters 11 inches above the test area floor.

KDLC Carts are available as shelf carriers with four stacks of 20” x 20” wire type shelves, adjustable on 3/4” increments, as load carriers, or as card cage carriers that support four stacks of standard 19” relay rack style card cages. Load carriers are normally specified to allow convenient testing of large solid objects normally tested in walk-in chambers.

Custom carts, connectors, load boards, card cages, connector arrays, bus bars, and fixturing systems optimized to match your specific requirements are available.

KDL Fixtured Roll-in Cart

The exterior equipment and the control apparatus are neatly packaged in a sheet metal enclosure painted Bemco Blue or optionally from 300 Series stainless steel so that they can be flush mounted through a wall or aligned with a narrow walkway.

In the same manner as the KDR Koldburn chambers, the KDL Cart loaded chamber uses a specially fabricated temperature controlled heated frame door with a conductively heated multi-pane glass window to provide a clear view of the entire workspace.

Each bay floor has two slots to allow flush loading of KDLC Carts without having to use a ramp. Each bay also includes provisions for installation of manual or automatic cart electrical, pneumatic, or hydraulic fixturing connectors at the rear of the workspace.

KDL chambers include an angle reinforced carbon steel outer case and a heliarc welded 304 Series stainless steel inner liner with high temperature fiberglass insulation. No asbestos is used. Duct-work and baffles are also fabricated from 300 Series stainless steel. Service access in from the rear.

48" x1
48" x2 50” 88.1” 142" 94.5"

Number of Workspace Bays
Interior Height
Interior Width
Interior Depth
Exterior Height
Exterior Width
Exterior Depth

KDL Table Notes:


Every bay includes two, high volume, non-sparking aluminum blowers drawing air through a large tongue like baffle beneath the KDLC Cart. Air from the baffle is passed through a rear mounted refrigerated heat exchanger, heaters, the two blowers, and then discharged into a top supply baffle to evenly distribute through the KDLC Cart. High volume air flow assures temperature uniformity over the items being tested and helps eliminate hot spots.

Two oversize shaft, dual ball bearing race, TEFC motors mounted outside the workspace on the chamber top drive the blowers. Please note that chamber height is increased by approximately 12” in the top area where the two fan motors are located.

A proportionally controlled, water cooled refrigeration system utilizing modern, environmentally friendly refrigerants is supplied to cool each bay. These systems are furnished as packaged units for remote mounting by your refrigeration contractor. Air cooled refrigeration systems and integrally mounted and enclosed systems are also optionally available.

Fast response, low watt density, open type heaters located behind a radiation baffle raise chamber temperature as required. The heaters are protected by a factory preset high temperature safety thermostat interlocked with a separate power interrupting contactor.

Safety Systems and Electrical Wiring

All systems have thermal and current sensors on the compressor, charging valves, and a sight glass as well as numerous safety and reliability protection systems for dependable operation. All electrical wiring meets the United States National Electric Code. UL and CSA approved components are used where possible.


The KDL Chamber includes a microprocessor based, programmable 1/4-DIN, solid state 256-step ramping controller with a 4-line LCD interface display, and a large red LED display. An RS232 and RS485 interface is standard. The protocol is Modbus™. LabVIEW™ drivers are available.

A Factory Mutual approved high and low temperature safety control with audible and visual alarm is optionally available.


Standard KDL chambers include a 3,000 cfm air circulation system in each bay. They heat from 0 C to 85 C at an average rate of 5 C per minute when loaded with a KDLC Cart and a test load equivalent to 500 pounds of aluminum per bay including fixturing. They cool from 85 C to 0 C in at an average rate of 5 C per minute with 500 pounds of aluminum per bay while the load dissipates 2000 watts per bay.

Custom conditioning systems with much faster heating and cooling rates and higher live load capabilities are available.

Temperature Control is + or - 1 C guaranteed, + or - 0.25 C typical.

Optional Accessories

These systems are designed for custom-tailoring to specific testing needs. Some of the common accessories specified include:

Optional Instruments

Available instrument options include:

Available Literature Includes:

KDL Cart Loaded  Burn-in and Stress Screening Chambers Literature Link Bemco KD Series, Kardburn and Koldburn Glass Door Burn-in, Stress Screening, and Medical Storage Chambers. Six standard common bay KDR Glass Door Chambers, four standard KDZ individual bay Glass Door Chambers, one and two bay cart loaded chambers, and one to six bay KDM Medical Storage Chambers. Document is 8 pages, 668 KB download.

The systems described above are our Standard Models. We make custom equipment to your specifications.  If you have any questions, need assistance in preparing a specification, or have a technical problem you want help with, we are ready.  Our quotations and advice are free.

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