Laboratory Macropipette Manufacturer

Shanghai Qiujing Biochemical Reagent & Instrument Co., Ltd. is a Laboratory Macropipette Manufacturer working out of Songjiang District, Shanghai, and producing precision liquid-handling instruments since our brand was established in 1988. Our macropipette programme covers electric large-capacity pipettes, manual large-volume pipettes and adjustable quantitative pipettors for the 0.25 mL to 10 mL band, where a micropipette is too small and a graduated cylinder or burette is too slow.

These instruments go to universities and research institutes, medical testing laboratories, food and environmental testing bodies, biotechnology and pharmaceutical producers, and industrial R&D and QC departments. Assembly and performance testing run in our own 24,000 m² production base, and the same lines carry OEM/ODM programmes with customer-specified volume bands, appearance, labelling and packaging.

The Qiujing Macropipette Range

Where Large-Volume Pipetting Fits

Macropipettes sit between micropipettes and graduated glassware. They carry the 0.25 mL to 10 mL transfers that appear constantly in sample preparation, reagent make-up and dilution series, and they keep those steps in one hand-held instrument rather than a cylinder, a bulb and a beaker.

• Food and environmental testing: spiking, diluent addition and extraction steps across many samples per batch.
• Medical testing and clinical laboratories: reagent and diluent transfer where repeatability between operators matters.
• Biotechnology and pharmaceutical work: culture media, buffer and formulation volumes handled under documented procedures.
• Industrial R&D and QC: batch sampling, viscosity-sensitive dosing and method development on the bench.
• University laboratories: student exercises that need economical, robust large-volume tools.

For higher routine throughput on the same bench, our adjacent Automatic Micro Liquid Dispenser covers automated micro-volume dispensing, while the Micropipette range handles sub-millilitre steps in the same workflow.

Liquid Contact, Materials and Compatibility

Wetted parts on our macropipettes are built from laboratory-grade polymers and, where a series uses them, glass components. The material set we propose follows the chemistry you actually pipette, because seals and pistons are the first parts to suffer from aggressive solvents, concentrated acids or high-salt buffers.

• Viscous liquids (glycerol, syrup, cell suspensions) need slower aspiration and a settling pause before delivery.
• Volatile solvents require pre-wetting of the tip and short residence time to limit evaporation loss.
• Foaming detergents and protein solutions favour controlled, slower dispensing speeds rather than a fast push.
• Temperature differences between liquid and instrument shift delivered volume; we specify verification at an equilibrated bench temperature.

Accuracy, Repeatability and Verification

Volume performance on a macropipette is judged by accuracy (systematic error) and repeatability (random error) at the low, mid and high points of the setting range. We verify with gravimetric testing practice following ISO 8655 principles: distilled or deionised water, a balance of suitable readability, stable temperature and a defined number of replicate deliveries.

• Verification at each user-set volume, not only at nominal capacity.
• Volume-setting lock to prevent drift during a batch.
• Re-check after any maintenance that opens the piston assembly.
• Documented results issued with the shipment where the project specifies it.

Ergonomics, Safety and Bench Setup

Large-volume work is repetitive, so actuation force, handle balance and tip ejection are functional specifications rather than comfort details. Manual models require no utilities; electric models use the power or battery arrangement stated for the selected model.

• Single-hand operation with a resting position for the thumb during long series.
• Tip interface sized to the tip you already stock, or supplied as part of the order.
• Chemical-resistant external surfaces and a stand or rack position that keeps the tip off the bench.
• Operator instructions covering speed selection, priming and end-of-session cleaning.

OEM/ODM Configuration and Workflow Integration

We supply standard models and build to customer drawings or samples. Typical OEM/ODM scope covers volume band, colour and housing appearance, brand printing, instruction languages and retail or bulk packaging. Where a project needs repeated dispensing across a plate or tube rack, we advise on the E-flow electric model or on combining macropipette transfers with our dispenser range so the bench keeps one consistent liquid-handling method.

Quality, Certification and Acceptance

Our quality system holds CE and ISO 13485 certification, supported by certificates including an EU Medical Device Notification, a Certificate of Export Sales for Medical Devices and a Class I Medical Device Production Record Certificate. Inspection is applied at incoming material, in-process assembly and finished goods, with technical patents underpinning several mechanisms.

Acceptance for a project order normally combines a visual and finish check, a function check of piston travel, speed control and ejection, gravimetric volume verification at agreed points, and a packaging and document review against the approved sample.

Information We Use to Configure Your Solution

Delivery Scope, Documentation and Support

Confirmed specifications are locked after sample verification and before formal production. Standard lead time is 10 working days, with schedule confirmation once order details, customisation and quantity are finalised. Instruments ship in protective packaging prepared for international freight, with the documents agreed for the order and operation guidance for the bench.

• Samples available for performance and compatibility checks before bulk orders.
• Technical consultation on volume selection, speed settings and cleaning routines.
• Spare parts and replacement components identified per model for serviceability.
• Troubleshooting support after delivery through our export service team.

Macropipette Questions We Answer Most Often

Which volumes can a Qiujing macropipette handle?

Our macropipette family serves the large-volume band from roughly 0.25 mL up to 10 mL, with the exact range fixed by series and model. Give us your smallest and largest step volumes and we will match the model rather than the other way round.

Which series should we choose for repetitive media or buffer dispensing?

The E-flow electric large-capacity pipette is the usual answer: adjustable speed lets the operator slow aspiration for viscous or foaming liquids, and the separating step supports one aliquot after another. Where no power or battery is wanted, the H-flow manual series covers the same volumes with thumb piston control.

Do you offer OEM/ODM macropipettes under our own brand?

Yes. We build to drawings or samples and customise volume band, appearance, printing, instructions and packaging. Specifications are finalised after sample confirmation, then released to production.

How do you confirm volume accuracy before shipment?

Gravimetric verification is performed on the agreed settings using distilled water and a suitable balance, following ISO 8655 practice, alongside function checks of piston travel, speed control and tip ejection. Results are documented when the project calls for it.

Can we receive a sample before placing a bulk order?

We provide samples so the instrument can be checked against your liquid, your tips and your operating routine. The sample stage is also where volume range and packaging are confirmed.

What should we send for a fast configuration and quotation?

Working volumes, liquid properties, transfers per session, manual or electric preference, existing tip type, cleaning routine, branding requirements, order quantity and destination market. With those details our team can propose the series, the volume band and the delivery scope in one response.