Manufacturer's in-stock 30ml, 50ml, 80ml tall square lotion bottles, square lotion bottles, cosmetic bottles for lotion and emulsion dispensing.

Product Overview

Sourcing lotion packaging usually comes down to three questions: does it hold the fill you need, does the closure actually seal, and can you get more of the same next quarter. This line answers all three from stock. We hold tall square lotion bottles in 30 ml, 50 ml and 80 ml, molded in pharmaceutical-grade transparent plastic, and every bottle is supplied with a matched cap, a black shoulder sleeve and a black lotion pump, so the container and its closure arrive as one set instead of two purchases that have to be reconciled on your filling line.

The square profile is why most buyers choose this format over a round bottle. Flat side panels use shelf and carton space more efficiently, give you four clean surfaces for a label or a direct print, and keep the bottle steady while it is being filled, capped and packed. The 30 ml size covers trial, travel and sample formats; 50 ml is the standard facial lotion and emulsion size; 80 ml suits body lotion and the larger consumer or professional sizes.

Because these are stock items, they are also the easiest line to repeat. Contract manufacturers, cosmetic formulators and distribution businesses keep this bottle in their catalogue as a standard container, hold the same pump and sleeve part numbers on file, and top up between larger custom runs. If you are weighing up plastic bottles wholesale options, this is the format that keeps unit cost predictable and lead time short.

As plastic bottle manufacturers, we hold the tooling for all three capacities in-house, so a repeat order runs on the same mold and the same matched closure set. Send us your fill volume, your closure preference and the market the finished product is sold in, and we will confirm which size and which cap finish fits the job.

Specifications

Square Profile and Structure

• Shelf and carton efficiency. A square footprint tiers and cartons with much less empty space than a round body, so the same shelf or pallet holds more units and the shape presents straight on a store shelf.
• Four flat label panels. Each side takes a label or a direct print across a flat surface, so artwork sits level instead of wrapping around a curve.
• Steady through filling and packing. The straight sides and flat base keep the bottle upright on a moving line and stable once it is boxed.
• A closure set, not a closure guess. The cap, the shoulder sleeve and the lotion pump are supplied for the same neck, so nothing has to be matched to a third-party pump on the filling floor.
• One look across three sizes. All three capacities come from the same tooling family, so a 30 ml and an 80 ml from the same order read as the same bottle when a brand runs them side by side.
• Pump interchangeability. The neck takes standard lotion pumps, which keeps you flexible if a customer later asks for a different dose or a different finish.
• Finished shoulder detail. The black shoulder sleeve covers the joint between the bottle and the pump, so the top of the bottle looks finished rather than mechanical.
• Wholesale plastic bottles, held in stock. A top-up order starts from stock rather than waiting for a production slot, which matters when a product launch moves faster than planned.

Dispensing and Sealing Performance

A full bottle is judged by what happens when it is used. The lotion pump on this plastic bottle is calibrated for controlled output, so every stroke delivers a repeatable dose rather than an approximate one — the difference between a product that measures cleanly in a treatment room and one that has to be decanted before it can be applied. A repeatable dose also leaves less product stranded at the end of the unit, which is what buyers notice when they reorder.

Sealing is handled by the matched closure set rather than by a single cap. The pump or cap seats on the neck and the shoulder sleeve sits below it, so the joint is protected from the dust and handling a packed carton goes through. For buyers already ordering plastic bottles with caps from several suppliers, the practical difference is that this closure is one approved part set: contamination and leakage are dealt with at the design stage instead of being chased through complaints after the shipment has landed.

The transparent body is specified for air and moisture barrier performance, so a lotion or emulsion does not lose condition between filling and first use, and the material carries UV protection for formulations that are sensitive to light.

On the filling line the behaviour is equally plain. The bottles are molded and assembled on automated equipment, the straight sides let them run without wobbling through the filler, and the transparent body lets an operator see the fill level before the carton closes. If you are validating a new line, send your neck and filling specification to your sales contact and confirm the fit before you commit to volume.

Applications and Use Scenarios

• Contract filling for skincare brands. A lotion or emulsion that needs the same container every month goes straight onto a high-throughput line, and the transparent body lets operators spot a fill problem before cartons are sealed.
• Private label and new-brand launches. Running a 30 ml trial size before a 50 ml hero size lets a new formula reach the market without committing to a custom mold.
• Spa, salon and treatment rooms. Practitioners get a controlled dose from the pump for facial and body treatments, and the square body stores compactly on a treatment-room shelf.
• Travel, amenity and sample kits. The 30 ml bottle sits comfortably beside smaller bottles and jars in a travel or gift set while keeping one shared design language.
• Distributors and cross-border sellers. Buyers who source from plastic bottle manufacturers for resale want a container that is in stock, simple to pack and easy to describe in a catalogue.
• Buyers comparing supply. If you are pricing plastic bottles wholesale across several suppliers, the comparison that matters is the bottle plus its matched closure set plus stock depth, not the unit price on its own.

Manufacturing and Quality Control

1. Material and component intake. The transparent plastic and the closure parts — cap, shoulder sleeve and lotion pump — are checked against specification before a run starts, so a mismatch is caught before it reaches a filled bottle.
2. Molding. Bottles come off in-house automated molding lines, which is what holds the 30 ml, 50 ml and 80 ml sizes to one set of dimensions instead of drifting between batches.
3. Assembly. Cap, sleeve and pump are fitted to the bottle, so the closure set you approve is the closure set you receive, already assembled and ready for the filler.
4. Dimensional and function checks. Capacity, neck fit and pump function are checked through the run, including the parts of the bottle that decide whether it seals on your line.
5. Appearance inspection. Body clarity, print position and the finish of the shoulder sleeve are checked against the approved standard before packing, because a visible flaw on a finished bottle becomes a returned carton later.
6. Repeat orders and change control. Reorders run on the same mold, the same matched closure set and the same inspection points, which is what keeps a plastic bottles wholesale programme consistent from one delivery to the next.
7. Documentation. Ask your sales contact which material and test information is available for this bottle so your quality team can review it alongside the consignment.

Customization Options

Ordering and Delivery

1. Confirm the specification. Tell your sales contact which capacities you need from 30 ml, 50 ml and 80 ml, and whether you want the black cap, the silver cap or the lotion pump with the black shoulder sleeve. All three options are supplied as plastic bottles with caps already matched to the neck.
2. Confirm quantity and carton rules. Agree the quantity you need, whether your cartons can mix sizes or colors, and the restock batch size you want to hold for these wholesale plastic bottles. Mixed packing and repeat quantities are confirmed case by case with your sales contact.
3. Approve print or colour before production. If the order is customized, confirm the artwork and the colour reference with your sales contact first. Printing runs take 3–7 working days and fully customized runs take 7–15 working days.
4. Stock orders. Items held in stock can ship the same day, so an urgent top-up does not have to wait for a production slot.
5. Packing. Wholesale orders are packed in sturdy cartons, with foam protection around smaller pieces and drag boards for larger items, which is how damage in transit is kept to a minimum. Carton quantity, net and gross weight and pallet loading are confirmed with your sales contact before dispatch.
6. Shipping and payment. Confirm the delivery terms, the payment method and the destination port or address with your sales contact when the order is placed.
7. Documents and engineering data. Ask which material and test documents are available for this bottle, along with the neck, capacity and dimensional data your engineers need for sign-off, and about sample availability, so everything can be reviewed before the order is confirmed.

Neck & Dimensional Tolerances

• Start from the neck, not the body. All three sizes take the same matched closure set, so one approved cap, shoulder sleeve and lotion pump covers a 30 ml, a 50 ml and an 80 ml run. If you plan to run a pump from your own approved supplier, send the neck thread and finish details with your enquiry so the fit is checked before the order is placed.
• Ask for the dimensioned drawing. We issue a drawing for the plastic bottle you order covering height, body width, base and neck, with the allowable deviation listed for each key part, so your filling line and your pump supplier can both work from one document.
• Wall thickness and molding tolerance. These are set per size and stated on the same drawing. Check them against the pinch force and the capping torque your line applies, because a thin wall under a stiff capping head is a poor combination.
• Rated capacity and fill volume. A 50 ml bottle holding a pump and a dip tube needs headspace above the fill line. Tell your sales contact the fill volume and the pump you intend to use, and we will confirm the size that leaves the right headspace for your lotion or emulsion.
• Empty-bottle weight. The per-bottle weight and its tolerance are what a check-weigher registers before and after filling, so confirm the value for the size you order before you set your tolerance band.
• How to verify a consignment. Measure a sample bottle across the base and the height, check the neck with a go/no-go gauge or one of your own pumps, and weigh one empty bottle. If a measurement falls outside the drawing, stop and raise it with your sales contact before the batch goes to the filler.

Pre-Fill Cleaning & Storage

The bottles leave the line new and unused, packed straight into cartons, and what happens between the carton and your filler is your decision. Some packers run them as delivered after an incoming inspection; others wash, rinse or disinfect before filling. Settle this before the procedure goes into your SOP, because a treatment that suits the bottle does not automatically suit the pump fitted to it — the cap, the shoulder sleeve and the pump are separate parts and each one reacts differently to heat and to chemicals.

Washing, disinfection and sterilization. Tell your sales contact which treatment your line uses — a water rinse, a disinfectant wash or a heat-based sterilization cycle — and we will confirm what the bottle material and the assembled closure set can take. Because the plastic bottles with caps are fitted and packed as one unit, validate whatever you choose on samples from your own consignment before it becomes a production step.

Chemical compatibility and drying. Cleaning agents differ in how they act on transparent plastic. Confirm the concentration and the contact time you intend to use, then check that a treated bottle dries clear and undistorted before you commit a full batch, and ask your sales contact about the material data we hold if the formulation or the cleaning agent is aggressive.

Storage before filling. Keep cartons sealed and off the floor in a dry, shaded area until the bottles reach the line, and rotate stock first in, first out. Store the carton upright so the weight of the bottles does not rest on the fitted pumps.

Recycling marks and refill programmes. Ask which material identification and recycling markings are available for the bottle and for the closure, since the marks your market expects are agreed at the order stage. Refillable or reusable formats are a decision for your own market plan; if you intend a refill programme, plan the cleaning and reuse cycles as part of your own validation and confirm with us what the container supports.

function and use and Target User Profile

These square lotion bottles are designed as packaging components for skincare and cosmetic production. They are aimed at contract manufacturers, cosmetic formulators, and distribution businesses that need compatibility with a wide range of lotion and emulsion formulations. The format supports both large-scale and boutique operations with efficient, standardized packaging that helps maintain product integrity and ease of dispensing. Plastic bottles with caps are available to help maintain product stability and integrate smoothly into manufacturing lines and distribution presentation, meeting end-user expectations for quality and functionality.

Technical Features and Measurable Specifications

Engineered with pharmaceutical-grade transparent materials, these bottles use tall square designs that optimize shelf space and presentation. Each unit is equipped with robust caps and shoulder sleeves to support secure closure and resistance to contamination or leakage. Lotion pumps are calibrated for precise dispensing control, supporting accurate dosage delivery in cosmetic and skincare applications. The bottles are manufactured under stringent quality controls and are available in consistent capacity options of 30ml, 50ml, and 80ml on automated production lines. These specifications support repeatability and compliance with packaging standards for high-volume distribution environments.

Performance and Usability Benefits

These plastic bottles with caps offer air and moisture barrier properties that help extend formulation longevity. The lotion pumps deliver controlled, repeatable dispensing that can reduce waste and improve dosing accuracy. Assembly is straightforward and compatible with automated filling lines, which can improve production efficiency. For end users, the sealing mechanism helps protect against contamination while providing convenient access, supporting satisfaction and safety compliance.

Factory and Company Strength

Hongxin Medical Technology is a high-tech advanced manufacturing facility integrating R&D, production, and sales, with more than 20 years of specialization in glass bottle manufacturing. Our 37,000㎡ production workshop is equipped with more than 60 injection molding machines, 16 bottle-blowing lines, and more than 40 automatic assembly lines, enabling a monthly output of over 20,000 units. We operate a 100,000-level dust-free workshop and hold more than 30 national patents and more than 100 test reports. We follow the core value of 'Empowering Brands' to deliver safe, efficient, and standardized glass packaging solutions to global clients.

Industry Applications and Real-World Value

These plastic bottles support scalable packaging across cosmetic, pharmaceutical, and health product manufacturing. They are compatible with lotions, creams, and emulsions, and their structural reliability and visual clarity help strengthen brand presentation while safeguarding product integrity. Companies that distribute wholesale plastic bottles can use customizable options for private labeling and promotional packaging tailored to market demands. The bottles also support controlled dosage regimens in distribution and clinical settings, contributing to improved dosing accuracy and adherence. Their adaptability suits applications ranging from bulk contract production to limited-edition launches within the cosmetic packaging industry.

Hongxin Medical Technology

Hongxin Medical Technology offers high-quality bottles for cosmetics, pharmaceuticals, and skincare. Our automated super factory ensures safe, durable, and customizable packaging solutions.

Scale & Supply Capability

Hongxin is a bottle packaging manufacturer headquartered in Guangzhou, China, with more than 20 years of industry expertise and a team of over 100 people. Our 37,000 m² production workshop and 328 sets of mechanical equipment cover molding through automatic assembly, supported by a 10,000 m² in-stock warehouse for repeat and regular orders. We take on OEM and ODM projects end to end — product development, mold design, mass production, inspection and delivery — and check every stage from raw-material selection to finished-goods testing.

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