Cummins announces new Tier 4 Final drilling module ratings at IADC

Columbus, Indiana

New 1,200 rpm and 1,800 rpm ratings allow drilling contractors to achieve productivity goals with exceptional life-to-overhaul

Cummins Inc. (NYSE: CMI), a global power leader, has announced four new EPA Tier 4 ratings for the QSK50 drilling power module (DPM) at the International Association Drilling Contractors (IADC) event today. 

Cummins is now offering the oil and gas industry a new Tier 4 final QSK50 Drilling Power Module with two ratings at 1,200 rpm and two additional ratings at 1,800 rpm. The 1,200 rpm ratings are conservatively estimated to deliver the same life-to-overhaul as the K50 and QSK50-T2 engines. Drilling Power Modules rated at 1,800 rpm provide greater flexibility for customers replacing a similar unit, or those needing higher output to drill through harder rock formations. 

Tony Lee, Cummins Drilling Segment Leader, noted, "Listening to our oil and gas customers and responding with products to meet their specific needs is what fuels the continuous improvement of existing products and expanding our offerings like these four new power module ratings. We now have a much greater capability to meet the productivity needs of this critical market."

Since Cummins introduced the original K50 Power Module over a decade ago, customers have experienced exceptional productivity, reliability and operating efficiency along with reduced downtime, cost of maintenance and longer life-to-overhaul.

With the introduction of the current Tier 4 final product, customers are benefiting from the use of selective catalytic reduction (SCR) versus competitive technologies. Cummins EPA Tier 4 solutions for the oil and gas industry using the SCR technology have accrued nearly 10 million hours of operation in some of the most demanding conditions. 

The QSK50 Tier 4 final engine uses the Cummins Modern Common Rail Fuel System (MCRS) technology to deliver four ratings from 1,500 bhp (1,119 kWm) at 1,200 rpm and 1,900 bhp (1417 kWm) at 1,800 rpm, while meeting U.S. EPA Tier 4 final emissions standards. These engines are coupled with a form-wound alternator sized for drilling rig service with electrical ratings from 1,000 kWe to 1,300 kWe at 60Hz.

The Complete Package

The QSK50 Power Module is a complete package designed for land-based drilling application use. Advanced features include:

  • Cummins QSK50 four-stroke diesel engine
  • MCRS for fuel efficiency with reduced noise and vibration
  • Flexible control solutions including Cummins’ PowerCommand 3300 Control Panel with full-authority electronic controls for engine and alternator monitoring, plus automatic adjustment for peak performance. Includes automatic digital frequency synchronization and voltage matching
  • Advanced diagnostics and prognostics capabilities with easy-to-read control panel
  • Three-point mounting to sub-base with isolation pad and vertical lift provisions
  • Certified to Tier 4 final emissions standards with selective catalytic reduction (SCR) utilizing diesel exhaust fluid (DEF). Bulk DEF tank options with integrated auto-fill capabilities available

Cummins’ drilling power modules are built to order in the company’s Arlington, Texas facility as a complete package. This allows for customization with many options to choose from, while exceeding industry norms for uptime with a low cost of ownership. 

Unsurpassed Service

The electronic management system of the Cummins QSK50 Power Module is pre-engineered to allow remote monitoring and diagnostics with fully automated notification capabilities and will be fully compatible with Cummins PrevenTech. The full factory warranty is backed by the largest service and support network in the world.

For more information about Cummins’ latest QSK50 T4 DPM solution, click here

About Cummins Inc.

Cummins Inc., a global power leader, is a corporation of complementary business segments that design, manufacture, distribute and service a broad portfolio of power solutions. The company’s products range from diesel, natural gas, electric and hybrid powertrains and powertrain-related components including filtration, aftertreatment, turbochargers, fuel systems, controls systems, air handling systems, automated transmissions, electric power generation systems, batteries, electrified power systems, hydrogen generation and fuel cell products. Headquartered in Columbus, Indiana (U.S.), since its founding in 1919, Cummins employs approximately 57,800 people committed to powering a more prosperous world through three global corporate responsibility priorities critical to healthy communities: education, environment and equality of opportunity. Cummins serves its customers online, through a network of company-owned and independent distributor locations, and through thousands of dealer locations worldwide and earned about $1.8 billion on sales of $19.8 billion in 2020. Learn more at

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