IKA LR 1000.70 Lid Holder, for the LR 1000 system, 0025003123

Statics and centre of gravity displacement in the workflow

In chemical reaction engineering, handling the fully equipped reactor lid during sampling, vessel cleaning or batch changeover poses a significant mechanical risk. The lid of the IKA LR 1000 system acts as a central metrological hub and is heavily laden with instruments: anchor stirrers, flow breakers, pH electrodes and temperature sensors are integrated in a gas-tight manner via standard ground joints. If this assembly is dismantled, the centre of gravity shifts extremely unfavourably due to the stirrers and sensors protruding downwards. The IKA LR 1000.70 lid holder is a structurally highly rigid support stand that compensates for precisely this kinetic instability. The solid base plate and the vertical cantilever arm are physically engineered to absorb the high torque of the asymmetrically loaded lid (including the mounted motorised drive) in a way that prevents tipping and eliminates vibration.

Fracture prevention and metrological integrity

Placing a loaded reactor lid on standard laboratory worktops inevitably leads to significant mechanical damage. The fragile, ion-selective glass membranes of the pH electrodes or the long stainless-steel shafts of the PT-100 sensors would immediately fracture or undergo plastic deformation (bending moment) under the dead weight of the heavy stainless-steel reactor lid. The LR 1000.70 holder secures the lid at a defined Z-height, ensuring that all instruments protruding into the medium are held completely contact-free and suspended in the air. This static protection maintains the system calibration of the probes and prevents catastrophic sensor failures.

Contamination prevention and GLP ergonomics

In addition to providing mechanical protection, the lid holder fulfils a vital analytical hygiene function. Stirring elements, to which residues of highly viscous polymers or emulsions may still adhere after synthesis, must not come into physical contact with the working environment. Suspending them freely in the lid holder prevents contamination (carry-over) of the work surface with aggressive or toxic media. At the same time, it ensures that freshly autoclaved instruments do not pick up dust or microbial contaminants from the laboratory bench before the next process step, which is essential for compliance with strict GLP/GMP guidelines.

Technical details

• Product type: Mechanical lid holder / storage rack
• Static function: Tilt-proof securing of asymmetrically loaded reactor lids
• Kinematics: Compensation for high bending moments through an optimised centre of gravity
• Mechanical protection: Prevents glass fractures in pH electrodes and sensor bending
• Hygiene: Ensures contact-free storage of contaminated or sterile stirring elements
• Compatibility: Exclusively compatible with IKA LR 1000 lid systems (basic and control)
• Material: Solid, torsion-resistant and chemical-resistant industrial metal
• Installation: Self-contained, stand-alone system for the laboratory workstation

Contents of delivery

• 1 x IKA LR 1000.70 lid holder (stand)

(Important note: Reactor lids, stir bars, sensors and the laboratory reactor itself are not included in the scope of delivery!)

Individual requirements & accessories

The LR 1000.70 lid holder is purely an infrastructural addition to the laboratory workstation and functions exclusively in conjunction with an existing IKA LR 1000 reactor system. For high-throughput laboratories that operate several reactor vessels (LR 1000.1 or LR 1000.3) in alternating operation on a base station, this stand is absolutely essential for safely storing the sensor-equipped lid during batch changes. Please feel free to contact our procurement service at any time regarding the ergonomic optimisation of your process systems.