Metal Saddle Packing/Metal Saddle Rings (IMTP®)

MACH metal saddle rings – comparable to IMTP® and RMSR® – are a type of random tower packing suitable for high-capacity and high-performance applications. Metal saddle rings offer excellent performance at an accessible price point along with guaranteed material quality. We can also design a custom product for specialized applications.

Our metal saddle rings combine the high void fraction and the well-distributed surface area of the pall ring with the low aerodynamic drag of the saddle shape. Additionally, our metal saddle rings compared to the pall ring provide a more open shape and improved liquid spread.

Metal Saddles
Nominal Size (in) 0.6 (15 mm) 1 (25 mm) 1.5 (40 mm) 2 (50 mm) 2.4 (60 mm) 2.75 (70 mm)
Void Fraction (%) 96.7 96.6 97.4 97.9 98.2 98.7
Geometric Surface Area (ft2/ft3) 83.8 60.6 46 29.6 25.6 18.6
Weight – SS304 (lb/ft3) 16.5 16.6 12.7 10.6 9 6.6
Product Overview

The first metal saddle ring was designed in the 1970s. MACH Engineering’s product takes this basic design and updates it to deliver improved performance and long-term value. While comparable to IMTP®, our product has a unique external geometry with a variety of fingers, arches and other features that prevent entangling and provide a large surface area to promote gas/liquid contact.

Materials and Sizes of Metal Saddle Packing

We have a wide range of metal saddle ring packing options in various sizes and configurations, including stainless steel saddles.

Sizes: MACH Engineering has 1-, 1.5-, 2- and 3-inch sizes, which have a void fraction between 97 and 99 percent and geometric surface areas ranging from 68 to 18 ft2/ft3.


  • 304 stainless steel (304 SS): Most common; offers excellent resistance to numerous atmospheric environments and corrosive media.
  • 304L stainless steel (304L SS): Slight but noticeable performance reduction over standard 304 alloys; lower carbon content minimizes potentially harmful carbide precipitation.
  • 316 stainless steel (316 SS): Excellent corrosion resistance and protects against elevated temperatures and acidic elements.
  • 316L stainless steel (316L SS): Lower carbon content than its 316 counterpart — its carbon content cannot exceed 0.03%.
  • Carbon steel: This special steel type offers a higher carbon concentration, making it stronger and less likely to break under pressure.
  • Aluminum: Lightweight metal; offers excellent corrosion resistance and conducts heat and electricity well.
  • Copper: Highly ductile and malleable; offers strong electrical and thermal conductivity and reliable corrosion resistance.

316 stainless steel has better corrosion resistance than 304. 304L and 316L are low-carbon stainless steel variants.

Key Benefits

Metal saddle rings offer several benefits over other tower packing products, including:

  • Lower pressure drop: Metal saddle packing provides lower pressure drops, which in turn reduces foaming and energy consumption.
  • Higher efficiency: By providing higher efficiency over a wide flow range, metal saddle rings deliver enhanced performance that permits smaller column diameters for designing new systems.
  • Better mechanical strength: A variety of material options lets you configure your purchase for optimal strength-to-weight ratio — select products are suitable for use in packed beds up to 50 feet deep.
  • Minimal drag and hold-up: Random geometries and an improved surface area promote improved interfacial gas-liquid contact with minimal hold-up.
  • High operation elasticity: Metal saddle ring tower packing offers a flexible solution that can adapt to operational changes while maintaining superior quality and performance.
  • Large flux: Besides enhancing liquid distribution, nutter ring tower packing can significantly improve the flux of the gas by making it larger.
  • Superior surface utilization: Metal saddle ring packing provides increased surface utilization for enhanced process results.
metal saddle benefits

Matching the right tower packing product to each application is an important goal at MACH Engineering. We design and sell a wide range of options to meet the needs of clients in different industries. Potential uses of our metal saddle ring packing include:

  • Sour water stripping
  • Acid gas removal
  • Atmospheric and high-pressure distillation
  • Methane and ethane removal
  • Used in degassing, vacuum distillation towers of petrochemical industry, chemical fertilizer industry and environmental protection
  • Applied to vacuum distillation, decarbonation and desulfurization systems, ethyl benzene separation, and isooctane, toluene systems.
Compatible Chemicals

Metal saddles are compatible with various acids, alkalis, salts, and organic solvents. Here are examples of chemicals that metal saddles can typically be used with:

  • Acids: Sulfuric acid (H2SO4), Hydrochloric acid (HCl), Nitric acid (HNO3), Phosphoric acid (H3PO4)

  • Alkalis: Sodium hydroxide (NaOH), Potassium hydroxide (KOH), Ammonia (NH3)

  • Salts: Sodium chloride (NaCl), Potassium chloride (KCl), Calcium chloride (CaCl2)

  • Organic Solvents: Ethanol, Methanol, Acetone, Toluene

Contact MACH Engineering for Assistance

At MACH Engineering, our team of tower packing experts will work closely with you to determine if nutter rings are right for your application. Whether you’re designing a new system or retrofitting an old one, we’ll help you find solutions that are effective, reliable and economical.

As knowledgeable metal intalox saddle ring manufacturers, we strive to find the most productive, efficient and cost-effective solutions for our customers. We’re a full-service supplier you can trust throughout the process.

The first step is to get in touch and request a consultation with our team. Use the form on our contact page to reach out to one of our representatives and get started.

Metal Saddles (IMTP®)

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