Rainin : What floorutions for precise and reproducible pipetting?

A subsidiary of METTLER TOLEDO, Rainin is a global leader in pipetting for life sciences, R&D and quality control laboratories. Its portfolio spans manual and electronic pipettes, positive displacement pipettes, high-performance tips and multichannel systems. Renowned for ergonomics and sample safety, Rainin set the benchmark with the LiteTouch System (LTS) and BioClean Ultra-certified tips. Dutscher supplies these solutions to enhance the reliability of PCR, NGS, ELISA, cell culture and QC analyses.

A pioneer in pipetting since 1963

Founded in 1963 in the San Francisco Bay Area, Rainin quickly became a key player in laboratory pipetting. The company joined the METTLER TOLEDO group in 2001, accelerating its international expansion and capacity for innovation. Its culture blends precision engineering, user-centred design and the compliance demands of regulated laboratories. Rainin notably popularised the LiteTouch System (LTS), an ergonomic standard that reduces the force required for tip loading and ejection. Today, from California (United States) and through a global network, the brand equips academic research, biotechnology, pharma and the agri-food sector with reliable, durable and fully calibratable pipetting solutions.

Expertise and areas of specialisation

Rainin focuses its expertise on three pillars: volume accuracy, ergonomics and sample integrity. Its Pipet-Lite XLS+ (manual) and E4 XLS+ (electronic) pipettes deliver reproducible accuracy for PCR/NGS, ELISA, cell culture and QC assays. The multichannel versions speed up microplate work, while positive displacement (Pos-D) models handle viscous, volatile or foaming liquids safely. For high-throughput workflows, the Liquidator 96 transfers 96 wells in a single motion, cutting variability and hands-on time.
On the consumables side, Rainin designs BioClean Ultra tips — certified free of RNase, DNase, DNA, endotoxins and PCR inhibitors — in both LTS and universal formats, sterile or non-sterile, with filter and low-retention options. The LTS system, with its cylindrical interface, reduces tip attachment/ejection force by up to 85% to limit MSDs and boost throughput. TerraRack pack formats reduce plastic footprint and free up bench space.
The brand also supports compliance through GLP/GMP features (lockout, reminders, RFID traceability across the XLS+ range) and calibration services from METTLER TOLEDO. Its programme Good Pipetting Practice (GPP) helps teams control sources of error and standardise technique. Result: a coherent pipetting chain — instrument, tip, method — that safeguards result accuracy while improving comfort and productivity.

Rainin products distributed by Dutscher

Frequently asked questions about the Rainin brand

What’s the difference between LTS and universal tips at Rainin?
The LTS tips use a cylindrical interface that dramatically reduces tip loading/ejection force. Universal tips fit standard conical pipette cones.

Are Rainin tips certified contaminant-free?
Yes — BioClean Ultra certification guarantees the absence of RNase, DNase, DNA, endotoxins, PCR inhibitors and other relevant contaminants. Sterile versions available.

Do Rainin pipettes suit challenging liquids?
For viscous, volatile or foaming samples, positive displacement models (e.g. Pos-D) deliver accuracy and minimise evaporative losses.

Does Rainin offer solutions for 96-well microplates?
Yes, multichannel pipettes and the Liquidator 96 speed up filling, wash steps and transfers with excellent repeatability.

How does Rainin limit the environmental impact of consumables?
TerraRack packaging significantly cuts plastic use and streamlines recycling and storage logistics.

What service options exist for compliance?
METTLER TOLEDO provides calibration, maintenance and GLP/GMP documentation. XLS+ pipettes include traceability features useful for QA/QC.