Raschig Rings (AMB-RR)

Ambani Metals is a leading manufacturer, supplier and exporter of Raschig Rings, Random Packing in India.

Raschig rings are tubes of approx. equal in length and diameter. They are used as a packed bed within columns in distillation and chemical engineering processes. It offers a low pressing factor drop from 0.1 to 0.4 mbar/stage. It is best suited for a low fluid load 0.05 m3/m2h and provides a large surface area within the column for interaction between liquid and gas vapours.

At Ambani Metals, we specialize in manufacturing and supplying high-quality Raschig Rings designed for demanding mass-transfer applications across chemical, petrochemical, and environmental industries. Known for their simple yet highly effective cylindrical shape, our Raschig Rings provide excellent surface area, superior chemical resistance, and optimal gas-liquid distribution, making them one of the most reliable tower packing materials available today.

Features

• Acid and alkali resistance
• Temperature resistance
• Simple structure and low cost

Material

• Stainless Steel 316/L, 304/L, 410, Inconel, Monel, Hastelloy, etc.

Ceramic Raschig Ring

Our Ceramic Raschig Rings are engineered with exceptional acid resistance and heat resistance, enabling them to perform efficiently in both high-temperature and low-temperature operating conditions. These rings can withstand corrosion from a wide range of inorganic acids, organic acids, and various industrial solvents, excluding hydrofluoric acid. This durability makes them ideal for industries that require long-lasting, maintenance-free packing solutions.

Applications of Ceramic Raschig Ring

Ambani Metals manufactures Raschig Rings that are suitable for multiple mass-transfer processes, including:

• Drying columns for chemical and solvent recovery units
• Absorption columns used in gas treatment systems
• Cooling towers for chemical and refinery plants
• Scrubbing towers for pollution control applications
• Distillation and extraction processes
• Applications in metallurgy, coal gas production, fertilizer plants, oxygen generation units, and other critical process industries

Our ceramic raschig rings are available in different sizes and materials to suit light-duty, medium-duty, and heavy-duty operating conditions.

Technical Specification of Ceramic Raschig Ring
SiO2 + Al2O3	>92%	CaO	<1.0%
SiO2	>76%	MgO	<0.5%
Al2O3	>17%	K2O+Na2O	<3.5%
Fe2O3	<1.0%	Other	<1%

Physical & Chemical Properties of Ceramic Raschig Ring
Water absorption	<0.5%	Moh's hardness	>6.5 scale
Porosity	<1%	Acid resistance	>99.6%
Specific gravity	2.3-2.40 g/cm3	Alkali resistance	>85%
Max operation temp	1200°C

Dimension and Other Physical Properties
Sizes (mm)	Thickness(mm)	Surface area (m2/m3)	Free volume (%)	Number per m3	Bulk density (kg/m3)	Packing factor (m-1)
6 × 6	1.6	712	62	3022935	1050	5249
13 × 13	2.4	367	64	377867	800	1903
16 × 16	2.5	305	73	192 500	800	900
19 × 19	2.8	243	72	109122	750	837
25 × 25	3.0	190	74	52000	650	508
38 × 38	5.0	121	73	13667	650	312
40 × 40	5.0	126	75	12700	650	350
50 × 50	6.0	92	74	5792	600	213
50 × 50	6.0	92	74	5792	600	213
80 × 80	9.5	46	80	1953	660	280
100 × 100	10	70	70	1000	600	172

Metal Raschig Rings

At Ambani Metals, we manufacture and supply premium-quality Metal Raschig Rings designed for efficient gas-liquid contact in demanding industrial environments. First developed in 1914 by chemist F. Raschig, the Raschig Ring became one of the earliest forms of fixed-geometry bulk packing. Its simple cylindrical design, with the height equal to its diameter-provides excellent mechanical strength and a reliable surface area for mass-transfer operations.

At Ambani Metals, we manufacture Metal Raschig Rings in a wide range of high-quality metals, including:

• Carbon Steel Raschig Rings
• Stainless Steel 304 Raschig Rings
• Stainless Steel 304L Raschig Rings
• Stainless Steel 316 Raschig Rings
• Stainless Steel 316L Raschig Rings
• Stainless Steel 410 Raschig Rings

These material options allow industries to choose the ideal packing based on corrosion resistance, temperature tolerance, and chemical compatibility.

Applications of Metal Raschig Rings

Due to their strength and versatility, Metal Raschig Rings are widely used in:

• Distillation columns
• Absorption columns
• Scrubbing systems
• Stripping towers
• Liquid-liquid extraction units
• Petrochemical and refinery plants
• Gas treatment and chemical processing industries

Their ability to withstand thermal shock, heavy vapor loads, and corrosive environments makes them suitable for both random packing and high-capacity tower systems.

Plastic Raschig Rings

At Ambani Metals, we manufacture and supply high-quality Plastic Raschig Rings, one of the earliest and most widely used forms of random tower packing. Before Frederick Raschig introduced this innovative packing shape in 1914, packed columns were filled with inconsistent materials like quartz, broken glass, coke, and pottery pieces. These irregular fillers created unpredictable performance, making it impossible to reproduce operating results from one tower to another.

The introduction of the Raschig Ring brought uniformity, repeatability, and efficiency to mass-transfer operations. Its simple cylindrical shape, where the height equals the diameter, provides a large surface area for maximum gas-liquid contact, improving the overall performance of absorption, scrubbing, and distillation columns.

Why Plastic Raschig Rings Are Popular

Plastic Raschig Rings remain one of the most widely used types of tower packing due to their:

• Low cost and excellent value for bulk applications
• Lightweight structure, reducing tower load and operational pressure drop
• High corrosion resistance, especially against acids, alkalis, and solvents
• Excellent thermal stability depending on the polymer used
• Consistent geometry, ensuring dependable mass-transfer performance

These plastic raschig rings are ideal for industries that need a reliable, lightweight, and economical packing solution.

Material Options Offered by Ambani Metals

We manufacture Plastic Raschig Rings in several high-performance polymers, including:

• PP (Polypropylene) Raschig Rings
• HDPE Raschig Rings
• PVC Raschig Rings
• CPVC Raschig Rings
• PVDF Raschig Rings

Each material offers different levels of chemical and thermal resistance, allowing customers to choose the perfect option for their application.

Applications of Plastic Raschig Rings

Plastic Raschig Rings are widely used in:

• Gas absorption and stripping systems
• Scrubbing towers for pollution control
• Cooling towers
• Environmental treatment systems
• Chemical processing and wastewater treatment
• Desulfurization units and wet scrubbers

Their lightweight nature makes them ideal for large-diameter towers and low-pressure systems.

Technical Specification of Plastic Rachig Ring
Product name			Plastic rachig ring
Material			PP, PVC, CPVC, PVDF, PTFE, PE.
Life span			>3 years
Size mm	Surface area m2/m3	Void volume %	Packing number pieces/ m3	Packing density Kg/m3	Dry packing factor m-1
16	260	91	171000	94	490
25	205	90	50000	112	400
38	130	89	19000	70	305
50	93	90	6500	68	177
80	90	95	1820	66	130
Feature	High void ratio, low pressure drop, low mass-transfer unit height, high flooding point, uniform gas-liquid contact, small specific gravity, high efficiency of mass transfer.
Advantage	1. Their special structure make it has big flux, low pressure drop, good anti-impaction capability. 2. Strong resistance to chemical corrosion, large void space. energy saving, low operation cost and easy to be load and unload.
Application	These various plastic tower packing are widely used in petroleum and chemical, alkali chloride, gas and environmental protection industries with max. temperature of 280°.

Physical & Chemical Properties of Plastic Raschig Ring

Plastic Raschig Rings are widely preferred in modern packed tower systems due to their excellent mechanical strength, chemical resistance, and thermal stability. At Ambani Metals, we manufacture Plastic Raschig Rings using high-performance, corrosion-resistant polymers to ensure long service life and consistent mass-transfer efficiency in harsh industrial environments.

Performace/Material	PE	PP	RPP	PVC	CPVC	PVDF
Density(g/cm3) (after injection molding)	0.98	0.96	1.2	1.7	1.8	1.8
Operation temp.(?)	90	>100	>120	>60	>90	>150
Chemical corrosion resistance	GOOD	GOOD	GOOD	GOOD	GOOD	GOOD
Compression strength(Mpa	>6.0	>6.0	>6.0	>6.0	>6.0	>6.0

Wide Range of High-Performance Plastics

Our Plastic Raschig Rings are available in various engineering-grade polymers, each selected for its unique resistance properties and operating capabilities. These include:

• PE (Polyethylene)
• PP (Polypropylene)
• RPP (Reinforced Polypropylene)
• PVC (Polyvinyl Chloride)
• CPVC (Chlorinated Polyvinyl Chloride)
• PVDF (Polyvinylidene Fluoride)
• PTFE (Polytetrafluoroethylene)

Exceptional Chemical Resistance

Plastic Raschig Rings offer outstanding resistance against a wide range of acids, alkalis, organic solvents, and corrosive gases, making them ideal for:

• Chemical processing plants
• Wastewater treatment systems
• Scrubber towers and absorption column
• Environmental gas treatment units

High Thermal Stability

Depending on the polymer type, Plastic Raschig Rings can operate safely within a temperature range of 60°C to 280°C.

• PP, PE, and PVC grades perform well in low to moderate temperatures.
• CPVC and PVDF offer improved heat resistance.
• PTFE Raschig Rings handle the highest temperatures and the most aggressive chemicals.

Consistent Geometry for Stable Tower Performance

The uniform cylindrical shape of Plastic Raschig Rings ensures:

• Efficient gas-liquid contact
• Low pressure drop
• High void space
• Uniform liquid distribution
• Improved mass transfer rates