Name: Low-Form Flat-Mouth Beaker
Brand: RichTech

Specifications

Low-Form Flat-Mouth Beaker · Specifications

Standard capacity ranges below. Custom capacities and special specifications available upon request.

Capacity (mL)	O.D. (mm)	Height (mm)	Wall Thickness (mm)	Lid I.D. (mm)
5	22	30	1.0	19
10	28	35	1.0	25
25	36	45	1.2	33
50	42	55	1.2	39
100	52	70	1.5	49
150	60	80	1.5	57
250	72	95	1.8	69
400	82	110	1.8	79
500	88	120	2.0	85
600	92	125	2.0	89
800	100	135	2.2	97
1000	110	150	2.2	107
2000	138	190	2.5	135
3000	160	215	2.5	157
5000	190	255	3.0	187

* Custom capacities and special specifications available. Contact us for details.
* Flat-mouth beakers have a smooth rim without a spout, compatible with sealing lids.
* Recommended lid I.D. values are nominal. Please use the beaker O.D. as the primary basis when selecting lids.

Product Description

The low-form flat-mouth beaker features a flat rim without a pouring spout, providing a smooth, even surface. This design enables the use of sealing lids for secure sample storage, effectively preventing evaporation and contamination. The flat-mouth design also makes these beakers particularly suitable for use with automated laboratory systems.

Three Series · Flexible Selection

RichTech offers beakers in low-form (spouted), tall-form (spouted), and flat-mouth series:

1. Low-Form Beakers (Spouted)

Low-profile design with a low center of gravity for stable heating and stirring.
Spout ensures smooth, drip-free pouring.
Ideal for routine solution preparation, heating reactions, and liquid transfer.

2. Tall-Form Beakers (Spouted)

Taller profile effectively prevents splashing during heating and reactions.
Spout for smooth pouring.
Designed for extended heating and samples prone to splashing.

3. Flat-Mouth Beakers

Flat rim with no spout, compatible with sealing lids.
Ideal for applications requiring sealed storage or contamination prevention.
Particularly suited for pharmaceutical, biotechnology, and automated systems.

Design Features

Flat-Mouth Design: The rim is smooth and even without a pouring spout, compatible with sealing lids for secure sample storage and contamination prevention.
Low-Profile Design: The height-to-diameter ratio is low, providing a low center of gravity for stable heating and stirring operations with reduced tipping risk.
Clear Graduations: White or blue graduated markings on the beaker body allow for quick volume reading, meeting routine laboratory needs.
Uniform Wall Thickness: Even wall thickness minimizes thermal stress during heating, reducing the risk of breakage.

Material Advantage

Manufactured from Borosilicate Glass 3.3 in accordance with ISO 3585 standards. The ultra-low coefficient of thermal expansion (3.3×10⁻⁶/K) ensures resistance to thermal shock up to 280°C, making it suitable for heating, cooling, and a wide range of laboratory operations.

Quality Assurance

Every piece undergoes rigorous dimensional inspection, stress testing, and visual inspection to meet high laboratory standards, providing reliable performance for your experiments.

Note: Flat-mouth beakers do not have a pouring spout. When pouring liquids, we recommend using a glass rod for guidance to prevent liquid from running down the outer wall. For sealed storage, please select compatible sealing lids.

Applications

Common Configurations

Sealing Lid + Flat-Mouth Beaker Sealed sample storage, evaporation prevention
Hot Plate + Flat-Mouth Beaker Solution heating, sample dissolution
Glass Rod + Flat-Mouth Beaker Stirring, mixing reagents
Automated Systems + Flat-Mouth Beaker Automated laboratory integration

Specific Applications

Sealed Storage

Sample storage requiring evaporation and contamination prevention

Solution Preparation

Standard solutions, buffers, culture media

Sample Dissolution

Heating dissolution of solid samples

Heating Reactions

Water bath heating, hot plate heating

Automated Systems

Batch processing with automated equipment

Pharmaceutical Production

API preparation, intermediate storage

Biotechnology

Media preparation, sample storage

Teaching Labs

Basic chemistry experiments in schools and universities

Tip: Low-form flat-mouth beakers are particularly well-suited for sealed storage and automated system integration due to their flat rim design. For sealed storage, we recommend selecting compatible sealing lids. When pouring, use a glass rod for guidance to prevent liquid from running down the outer wall.

Beaker Procedure

03

Sealing & Storage

Flat-mouth beakers are designed to be used with sealing lids for secure sample storage.
Ensure the rim is clean, dry, and free of residue before sealing.
Select a sealing lid that matches the beaker O.D. for optimal sealing performance.
For long-term storage, periodically check lid sealing performance.

04

Heating

Always heat beakers using a wire gauze or hot plate to ensure even heat distribution and prevent localized overheating.
Do not fill the beaker beyond 2/3 of its capacity to prevent boiling over during heating.
Gently stir with a glass rod during heating for even temperature distribution.
When heating liquids, do not point the beaker opening toward yourself or others to prevent injury from splashing.

05

Pouring & Transferring

Flat-mouth beakers do not have a spout. When pouring, use a glass rod as a guide — place the rod against the rim and pour liquid along the rod into the receiving container to prevent liquid from running down the outer wall.
Tilt the beaker slowly to avoid overflow.

06

Cleaning & Maintenance

Clean promptly after use to prevent residue from drying and hardening.
Use dilute acid or specialized cleaning agents for stubborn residues.
Rinse with distilled water and air-dry upside down on a drying rack.
Store carefully to avoid chipping and breakage.
For long-term storage, ensure beakers are completely dry to prevent glass corrosion.

Tip: Low-form flat-mouth beakers are particularly well-suited for sealed storage and automated system integration due to their flat rim design. For sealed storage, we recommend selecting compatible sealing lids. When pouring, use a glass rod for guidance to prevent liquid from running down the outer wall. Clean and dry thoroughly after each use to extend product life.

Care & Notes

Show care & notes

Safety Notes

Inspect beakers for cracks or scratches before use — damaged glass may break when heated.

Do not

Always use a wire gauze or hot plate when heating — never place a beaker directly over an open flame.
When heating liquids, do not point the beaker opening toward yourself or others.
Do not place hot beakers directly into cold water — thermal shock may cause breakage.
Handle and store with care, avoiding impact with hard surfaces.