Pan Body: Capacity 5-500 kg, Diameter 300-2000 mm

Component Specifications

Definition

The pan body is the primary structural component of a coating pan machine, typically a rotating cylindrical vessel designed to tumble and mix solid substrates (like tablets, pellets, or candies) while coating solutions are sprayed onto them. It ensures even distribution and drying of coatings through controlled airflow, temperature, and rotational speed, critical for achieving consistent product quality in pharmaceutical, confectionery, and nutraceutical manufacturing.

Working Principle

Operates on the principle of controlled tumbling and spraying: the cylindrical body rotates on a horizontal axis, causing substrates inside to cascade. Coating solutions are atomized and sprayed onto the tumbling bed, while heated or conditioned air flows through the pan to facilitate drying and film formation, ensuring uniform coating thickness and adhesion.

Materials

Typically constructed from 304 or 316L stainless steel for corrosion resistance, hygiene, and durability. May include polished interior surfaces (e.g., Ra ≤ 0.8 μm) to prevent sticking and ensure easy cleaning. Optional glass viewing windows or ports for process monitoring.

Technical Parameters

Parameter	Typical range	Notes & selection driver
Capacity	5-500 kg
Diameter	300-2000 mm
Rotation Speed	5-30 rpm
Surface Finish	Mirror or electropolished
Wall Thickness	3-10 mm
Inclination Angle	0-15 degrees

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Standards

ISO 14644-1, DIN 11864-1, FDA CFR 21 Part 211

Parent Products

This component is used in the following industrial products

Coating Pan

A rotating vessel used to apply uniform coating layers to pharmaceutical tablets through controlled spraying and drying processes.

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Engineering Analysis

Risks & Mitigation

Uneven coating due to improper rotation speed
Material buildup leading to cross-contamination
Corrosion from aggressive cleaning agents
Mechanical failure from wear or imbalance

FMEA Triads

Trigger: Inconsistent rotation speed
Failure: Uneven coating thickness and poor product quality
Mitigation: Implement variable frequency drives (VFDs) and regular calibration of drive systems

Trigger: Abrasive substrate contact
Failure: Surface wear and contamination risk
Mitigation: Use wear-resistant stainless steel grades and periodic interior inspections

Trigger: Improper cleaning procedures
Failure: Residue buildup and microbial contamination
Mitigation: Follow validated cleaning protocols and use compatible sanitizers

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance

Dimensional tolerance ±1 mm for diameter, rotational balance within 0.5 g-cm to prevent vibration

Test Method

Visual inspection, surface roughness testing (per ISO 4287), leak testing, and performance validation using placebo tablets or tracers

Procurement Evaluation Criteria

A practical evidence checklist for RFQ preparation and supplier evaluation.

Technical documentation

Request current drawings, revision history, and a signed specification sheet.

Manufacturing capability

Verify equipment lists, process limits, capacity, and representative production evidence.

Inspection readiness

Confirm test methods, calibrated equipment, sampling plans, and traceable reports.

Supplier transparency

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Manufacturers of Pan Body

Manufacturer profiles associated with Pan Body.

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Frequently Asked Questions

What is the purpose of the pan body in a coating pan?

The pan body provides the rotating cylindrical chamber where solid substrates are tumbled and coated with solutions, ensuring even distribution and drying for consistent product quality.

Why is stainless steel commonly used for pan bodies?

Stainless steel (304/316L) offers corrosion resistance, hygiene, durability, and ease of cleaning, meeting strict regulatory standards in pharmaceutical and food manufacturing.

How does the pan body achieve uniform coating?

Through controlled rotation speed and inclination, the pan body creates a cascading bed of substrates, while spraying systems and airflow ensure even application and drying of coatings.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records. See the editorial policy.

Preliminary Technical Classification

This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

Pan Body