Features of Tensile Test Chambers

1,Chamber and cart designed to fit tensile test machines and benches by  other brands.

2,Full-opening door with silicone gaskets and hinged on left side

3,Slots in top and bottom of chamber for test grips

4,Lifting eyebolts to aid in positioning

5,Interior and exterior is stainless steel

Refrigeration and Plenum

1,Rear-mounted plenum with cooling coil and nichrome wire heaters

2,Air-cooled refrigeration system using hermetic compressor(s)

3,Humidity models include steam generator and dehumidification coil

System Controls

1,Attached instrumentation console

2,Programmable controller with touch-screen and Ethernet

Environmental Chambers

Grande Environmental chambers provide extensive temperature testing capabilities for evaluating material properties under non-ambient testing conditions.

Environmental Chambers

The GRANDETOP® environmental chambers provides extensive temperature testing capabilities for evaluating material properties under non-ambient testing conditions. A full range of complementary grips, pullrods and extensometers is available.

Principle of Operation

The chambers use forced convection for optimum temperature distribution and a sophisticated PID controller ensures minimum overshoot and excellent set-point stability. The auto-tuning temperature controller gets you to set-point quickly without the need to adjust other parameters. Rapid heat-up and recovery times lower cost per test by improving throughput. Air-cooled skin reduces external temperature and interlocks cut the heating/cooling and fan when the door is opened minimizing non-ambient air reaching the operator. Dual window heaters ensure optimum clarity at low temperatures giving more useful test time when using non-contacting extensometers or other optical devices

Units SI(Metric)

Unit US Customary

Environmental Chamber for Floor Model Systems

Temperature range: Ambient to +350 °C (+660 °F).

Includes: 

· PID temperature controller

· Internal light

· Removable wedge-ports with instrumentation cut-out

· Left-hand hinged door with optical-quality heated glass window for use with Instron video extensometers. 

   Note:Cooling options available for testing below ambient temperatures.

Dimensions: 

Internal 

· Height: 660 mm (26.0in) 

· Width: 400 mm (15.7 in) 

· Depth: 400 mm (15.7 in) 

 External 

· Height: 810 mm (31.9 in)

· Width: 550 mm (21.6 in)

· Depth: 855 mm (33.7 in)

Cooling modules for Environmental Chamber

Cooling Modules for Environmental Chambers

Cooling modules are optional devices that allow Environmental Chambers to be used below room temperature using CO2 or LN2 gases.

Principle of Operation

The cooling module is a solenoid valve that injects cooling gas into the chamber. It is activated automatically by the temperature controller of the chamber.

Unit SI(Metric)

US Customary

Mounting Brackets and Lift Stands for Environmental Chambers

Mounting Brackets and Lift Stands

Environmental Chambers need to be firmly attached to the test system during use. Both rigid and roller mountings are available.

Rigid mountings are simple, fixed brackets which bolt to the attachment holes in the test system. Roller mountings allow the chamber to be pushed to the rear of the test system when not in use.

Pull Rods and Push Rods for Environmental Chambers

Pull Rods and Push Rods

A full range of pullrods and pushrods is available to allow compatible grips and fixtures to be used within an Environmental Chamber

Principle of Operation

Pullrods and pushrods are manufactured from stainless steel for resistance to corrosion and oxidation. Pullrods for pneumatic grips feature integral air channels to avoid the use of pipes within the chamber

Furnace

These three zone resistance wire wound furnaces are of split construction to facilitate fast and easy loading of a pre-assembled specimen train. The case is constructed from stainless steel with aluminium and hardened insulation board end plates. The optional front cut-out allows the use of side-entry high-temperature extensometry. Adjustable stainless steel latches keep the furnace halves locked together during use, but are then easily opened once testing is complete. The furnace is available with optional heavy duty brackets or mountings, which attach to a wide range of testing systems. An extensive range of standard controllers is available to suit most test regimes. Custom variants can be specified should the standard range not include a suitable unit.

Principle of Operation

The resistance wire is wound on to recrystallized alumina tube in three independent zones to form the furnace element. This three-zone format allows the user to tailor the furnace temperature gradient, creating a uniform central zone. High-performance ceramic fiber insulation is used to reduce heat losses and provide fast heating rates. The specimen is heated through a combination of convection and radiation, dependent on the test temperature. The furnace bore has been optimized to suit a wide range of test fixturing without encouraging excessive thermal losses. Type K thermocouples are provided as standard, but any other configuration is available on request.

Units SI(Metric)

Units US Customary

Grips for Furnaces

A range of high-temperature specimen grips and holders is available to suit the pullrods and pushrods required.

Principle of Operation

A variety of grip and holder types is available including the commonly used screw-ended style.

Units SI(Metric)

Unit US Customary

Pull Rods and Push Rods for Furnaces

Units SI(Metric)

US Customary

Mounting Brackets for Furnaces

Mounting Brackets

Furnaces need to be firmly attached to the test system during use but also readily moved to allow access to the specimen and loadstring for setting-up.

Principle of Operation

A variety of mountings are used depending on the furnace type and design. Roller mounts are frequently used for slot-fronted furnaces. Clam-shell designs often use rotating mounts.Please refer to product datasheets for more details.

Temperature Controllers for Three Zone Furnaces

Temperatue Control System for Three Zone Furnaces

Temperature control systems are designed for controlling the heat output of furnaces. The control systems are compatible with all furnace systems offered as new equipment and can be configured to operate nearly any furnace with any one of several different thermocouples types. Three zone contol systems are designed for heat-only furnaces with three separate zones of heating elements, and typically three different thermocouples to control those zones.

Principle of Operation

Typical systems consist of three model Eurotherm controllers. Each controller independently controls the temperature of a furnace chamber zone. Automatically controlled systems allow the user to program a set-point or test temperature, and the controller controls a zero-cross fired SCR to control the current to each zone. Systems use Type K or R/S thermocouples to monitor temperature either from the furnace wall or attached to the specimen. Zero-cross SCRs are used for stable high current control or power going to the furnace/chamber heating elements. The electrical isolation and heat sink coiling design offers long life and stability.

Units SI(Metric)

Custom Thermal Testing

Customized solutions for chambers,furnaces,mounts and pull rods.

The Custom Solutions group at Grande has been developing accessories for unique thermal applications to meet our customers's unique needs for decades.Your specimen acts differently in different environments and your testing should match,that's why we will develop thermal testing accessories that allow the ultimate flexibility in testing.Whether your testing in super cooled or extremely heated environments using a new frame or using your current set-up,we will work diligently to understand your goals and ensure they are met or exceeded.Please browse the gallery above to see some of our recent projects.