PCP Application Rods

Exceed (Canada) is the Canadian division of Nine Ring Petroleum Machinery Co. Ltd. in China; the largest sucker rod manufacturer in the world (150 million ft per year).

Our 35 acre manufacturing facility is equipped with a fully automated production line and is 100% computer controlled. We are ISO 9001 and API certified and maintain 100% API compliance through consistent and rigorous inspection and monitoring programs.

Exceed offers a variety of innovative and advanced styles of sucker rod products that provide superior performance, even in the toughest downhole conditions. Exceed’s pin and coupling threads are rolled and cold-forged for superior strength, and are either phosphated or copper-coated to avoid thread galling issues.

For progressive cavity pump (PCP) applications, Exceed provides the industry-recognized modified pin connection for all of our rod product lines. This downsized long pin connection provides higher torque transfer, less flow restriction, and longer fatigue life. Exceed also offers our patented dove-tail type of connection in our EHT category for transferring a higher torque with a downsized rod body to overcome slip/backspin issues.

  • ED rod:
    Smaller and stronger than traditional API D Grade rods
  • EKD rod:
    D Grade strength for longer run times in corrosive conditions
  • EH rod:
    Ultra-high strength suitable for heavy load/deep wells


Conventional approaches of adopting or modifying traditional sucker rods for PCP applications often came short in meeting the higher torque and other unique requirements of PCP.

In 2006, our engineers started research and development of a PCP specific rod. The current generation EHT features our patented locking dove-tail connection and case hardened rod body.
With this special dove-tail design, the torque is on the body; not on the thread which prevents slip/backspin issues. The case hardened rod body doubles its durability.

Overall, it offers 20-30% higher torque. Customers who switched to EHT have seen the benefits of reduced load, improved operating efficiency and lower failure rate.

Download PDF: PCP Application Rods

Exceed Rods vs Industry Standard Chart
ExceedProduct CategorySteelTensile Strength (ksi)Competitors' Product
DAPI-D Grade4142120 - 140API D / 78 [Norris]
EDImproved API - D Grade4125126 - 145None
KDCorrosion Resistance4320120 - 14090 [Norris]
Corrosion Resistance4330125 - 14075 [Norris] / D Special [Tenaris]
Corrosion Resistance4720144 - 180KD [Weatherford]
EKDCorrosion Resistance3130140 - 150S-87 [Weatherford]
EHHigh Strength4125140 - 150None
EH6High Strength4138140 - 15596 [Norris]
EH7High Strength / Avg. Corrosion Resistance4330140 - 17097 [Norris]
EHKHigh Strength / Avg. Corrosion Resistance3130140 - 170S-88 [Weatherford]
EH9High Strength
High Corrosion Resistance
Stainless steel 11-12% Cr140 - 170None
EHTPCP Rod (Dove tail connection)4125144 - 180None

PCP Rods are available in 25ft/26ft/30 ft. Pony Rods are available in 2, 4, 6, 8 10 and 12 ft. Modified long pin connection.

Exceed (Canada) Oilfield Equipment Inc Suite 1905, 500 – 4th Ave SW Calgary AB T2P 2V6

T: 587-356-1888

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