Ohaus SHHD4525DG Digital Heavy Duty Orbital Shaker

A high-capacity digital shaker for bulk sample processing

The Ohaus SHHD4525DG is a digital orbital shaker in the Heavy Duty family, built for labs that need to process large flask volumes or many vessels at once, with a weight capacity of up to 45 kg.

It sits between the 23 kg-class models and the largest 68 kg-class models in the Heavy Duty range, offering more headroom without moving to the largest footprint.

Accu-Drive shaking system and triple eccentric drive

The Accu-Drive shaking system delivers speed control, accuracy, and durability, paired with a brushless DC motor and triple eccentric drive that keeps the tray flat through the entire speed range.

Speed accuracy is within 1% of the set speed above 100 rpm, and within 1 rpm below 100 rpm.

Load sensing and overload protection

An integrated load sensor detects unbalanced or excess-load conditions and automatically reduces speed to protect the sample, backed by overload protection and an audible alarm.

• Weight capacity of 45 kg at 125 rpm, scaling down to 18 kg at 300 rpm
• Timer adjustable from 1 second to 160 hours
• Working environment of -10°C to 60°C, 80% RH, non-condensing

RS232 interface and user calibration

The built-in RS232 interface and user speed calibration support integration into documented, quality-controlled workflows where reproducibility needs to be demonstrated.

Included tray and the wider accessory ecosystem

The SHHD4525DG ships with a built-in tray (610 x 610 mm) and a non-slip rubber mat, ready to accept flask clamps, test tube racks, and larger platforms from the shared Ohaus accessory ecosystem of 70-plus options.

Ideal Applications

The Ohaus SHHD4525DG suits the following applications.

• Bulk or high-throughput flask culture and bottle shaking
• Extractions and solubility studies at larger scale
• Bacteria and yeast culture work at higher volumes
• Staining, destaining, and blotting techniques
• Labs needing RS232 connectivity or user calibration

Choose the SHHD4525DG when:

• You need to process large sample loads, up to 45 kg
• You need accurate, repeatable speed control
• You want RS232 connectivity or user speed calibration
• Load sensing and overload protection matter for your samples
• A 25 mm orbit suits your flask or vessel size

Ohaus Value Proposition

The SHHD4525DG combines a 45 kg capacity with the Accu-Drive system, load sensing, and RS232 connectivity, for accurate high-capacity orbital shaking.

Ohaus backs the Heavy Duty range with a wide accessory ecosystem and global service network.