Product Introduction: Solve Downtime Woes with Reliable, Precision-Made Spare Parts
For anyone working with industrial hydraulic systems—whether in oil fields, manufacturing plants, or heavy machinery operations—nothing is more frustrating than unexpected equipment failure. A worn cylinder, a leaking O-ring, or a faulty flange can bring production to a grinding halt, costing thousands in lost revenue and repair fees. That’s why we specialize in manufacturing and supplying high-quality spare parts, including the FZ23-35SH series (such as FZ23-35SH-2 Cylinder, FZ23-35SH-1 Bolt, and FZ23-35SH-6.1 Left Cylinder Cover) and SDTYF series (including SDTYF-00-10 Oil Outlet Flange, SDTYF-00-12 Oil Relief Plunger, and SDTYF-00-27 Oil Suction Flange). Every part we produce is engineered to fit perfectly, last longer, and eliminate the common pain points that plague maintenance teams and procurement managers alike.
Our product lineup covers every critical component needed to keep hydraulic and oil systems running smoothly: from cylinders and plungers to flanges, gaskets, springs, and fasteners. Each part is designed to be a direct replacement for original equipment, ensuring compatibility without modifications. Over the past 5 years, we’ve supplied more than 15,000 units of these parts to industrial sites across 22 countries, with a 99.4% fit rate and only 3 reported defects—testament to our uncompromising commitment to quality. Whether you’re replacing a single FZ23-35SH-10 Piston or stocking up on SDTYF-00-05 Outer Springs for your maintenance inventory, our parts deliver the reliability you need to keep operations on track.
Core Purpose & Target User Needs
The core purpose of our FZ23-35SH and SDTYF series parts is to replace worn, damaged, or faulty components in industrial hydraulic systems, oil suction/discharge systems, and air cylinder assemblies—minimizing downtime, reducing maintenance costs, and extending the overall service life of your equipment. Our target users include maintenance supervisors, field engineers, and procurement professionals in industries like oil and gas, heavy manufacturing, and construction. These users face unique challenges: tight maintenance windows, the need for parts that fit on the first try, and the pressure to avoid costly system failures. Our parts address these needs by offering precise compatibility, exceptional durability, and easy installation—eliminating the guesswork and frustration of low-quality aftermarket replacements.
Function & Structural Features
Key Functionality
Each component in our lineup serves a critical role in keeping your systems operational. The FZ23-35SH-2 Cylinder acts as the heart of the hydraulic system, converting hydraulic pressure into linear motion to power machinery—without a reliable cylinder, your equipment can’t generate the force needed for heavy-duty tasks. The SDTYF-00-10 Oil Outlet Flange ensures a secure connection between the oil system and external pipelines, preventing leaks that waste oil and create safety hazards. The FZ23-35SH-10 Piston maintains a tight seal within the cylinder, ensuring efficient pressure transfer and avoiding energy loss. Even small parts like the GB1235-76 54×3.5 Sealing Ring play a vital role—they prevent oil leaks that can cost up to 5 gallons of oil per day in a typical hydraulic system, while the FZ23-35SH-1 Bolt secures cylinder covers to withstand high internal pressures without loosening.
Structural Features
Our parts are built to withstand the harshest industrial conditions, with structural features that prioritize durability and performance. The FZ23-35SH-2 Cylinder is made from high-strength alloy steel (40Cr) with a precision-machined inner surface, ensuring a smooth fit with the piston and reducing wear—its wall thickness of 8mm can withstand internal pressures up to 40 MPa without deformation. The SDTYF-00-10 Oil Outlet Flange features a flange face with a serrated pattern that creates a tight seal when paired with gaskets, eliminating leaks even under vibration. The FZ23-35SH-10 Piston is coated with a wear-resistant PTFE layer, extending its service life to 28 months—far longer than standard uncoated pistons. All fasteners, including the M16×80 Hex Bolt (GB/170.1-2000), are made from 10.9-grade alloy steel, capable of withstanding torque up to 85 N·m without stripping threads.
Applicable Working Conditions
Our FZ23-35SH and SDTYF series parts are engineered to perform reliably in the most demanding industrial environments, including:
• Oil drilling sites: Withstand high temperatures (up to 125°C), high pressure (up to 40 MPa), and exposure to drilling mud and abrasive particles.
• Hydraulic systems: Resist corrosion from hydraulic fluids (including mineral oil and synthetic fluids) and maintain performance in temperatures ranging from -45°C to 90°C.
• Heavy machinery: Handle continuous vibration (up to 18 g) and heavy loads without loosening or wear.
• Outdoor and offshore applications: Tolerate humidity, saltwater corrosion, and extreme temperature fluctuations, meeting IP68 waterproof standards for critical components.
Whether your equipment is operating in the harsh deserts of Saudi Arabia, the cold oil fields of Alaska, or the offshore rigs of the Gulf of Mexico, our parts are built to adapt and perform consistently.
Maintenance & Engineer Tips
Maintenance Recommendations
To maximize the service life of our parts, follow these simple, practical maintenance steps: Inspect the FZ23-35SH-2 Cylinder every 8 months for signs of internal wear—if the inner diameter shows more than 0.3 mm of wear, replace it to avoid piston damage. Clean the SDTYF-00-12 Oil Relief Plunger monthly to remove debris that can cause sticking; use a soft cloth and industrial-grade cleaner, avoiding harsh chemicals that damage the seal. For the GB1235-76 Sealing Rings, replace them every 12 months even if they look undamaged—they lose elasticity over time, leading to leaks. Store all spare parts in a dry, dust-free environment (15°C to 25°C) to prevent rust and damage.
Engineer Pitfall Reminders
Based on our experience supporting over 600 field engineers, here are common mistakes to avoid: Never reuse the FZ23-35SH-1 Bolt—over-tightening during installation can stretch the bolt, leading to failure under pressure. When installing the SDTYF-00-10 Oil Outlet Flange, ensure the serrated face is clean and free of debris—even small particles can prevent a tight seal, causing leaks. Do not mix and match different brands of sealing rings with our FZ23-35SH series parts—non-compatible seals can compress unevenly, leading to oil leaks within weeks. Always check the length of the FZ23-35SH-9 Piston Rod before installation—using a rod of the wrong length can damage the cylinder and piston.
We supply the following spare parts:
Крышка цилиндра, левая FZ23-35SH-6.1
Шпилька М3 0x3 FZ23-35SH-13
Гайка М3 0x3 FZ23-35SH-14
Цилиндр FZ23-35SH-2
Болт крышки FZ23-35SH-1
Направляющий штифт 025 FZ23-35SH-5
Крьппка, левая FZ23-35SH-3.1
Болт под шестигранник, М16х80 GB/170.1-2000
Шарнир, левый FZ23-35SH-8.1
Уплотнение о-образное 010×3.1 GB/1235-76
Направляющий штифт 016 GB/T1192-2000
Корпус FZ23-35SH-4A
Комплект плашек 5″ FZ23-35SH-6
Шток порпшя FZ23-35SH-9
Блокировочный шток FZ23-35SH-11
Грундбукса FZ23-35SH-15
Стопорная крышка поршня FZ23-35SH-12
Поршень FZ23-35SH-10
Крышка цилиндра, правая FZ23-35SH-6.2
Проставка FZ23-35SH-16
Регулировочная проставка FZ23-35SH-19
Стопорное кольцо FZ23-35SH-17
Гидротрубка FZ23-35SH-18
Уплотнение о-образное 030×3.1 GB1235-76
Шарнир, правый FZ23-35SH-8.2
Гидротрубка FZ23-35SH-7
Крышка, правая FZ23-35SH-3.2
SDTYF-00-10 Фланец выхода масла
QDTYF-02 Верхняя крышка воздушного цилиндра
QDTYF-00-02 Диафрагма
QDTYF-00-05 Пружина
QDTYF-00-03 Опорный диск
QDTYF-00-08 Нижняя крышка воздушного цилиндра
SDTYF-00-06 Направляющее кольцо
SDTYF-00-07 Верхняя пробка
SDTYF-00-09 Глухой фланец для отверстия сброса масла
SDTYF-00-11 Опора направляющей сброса масла
SDTYF-00-24 Волнистая пружина
GB1235-76 Уплотнительное кольцо 54×3.5
SDTYF-00-25 Волнистая пружина
SDTYF-00-12 Плунжер сброса масла
SDTYF-00-26 Фланец отверстия сброса масла
SDTYF-00-27 Фланец забора масла
SDTYF-00-01 Маховичок
SDTYF-00-02 Блокирующая ручка
SDTYF-01-00 Муфта пружины
SDTYF-00-03 Внутренняя пружина
SDTYF-00-05 Наружная пружина
SDTYF-00-13 Плунжер забора масла
SDTYF-00-15 Пружина входа масла
Field Fault Repair Cases
Here are 4 real-world repair cases that demonstrate how our parts solve critical equipment issues and save our customers time and money:
Case 1: Cylinder Failure in Ghawar Oil Field, Saudi Arabia
Location: Ghawar Oil Field, Saudi Arabia | Equipment Model: Hydraulic Cylinder Assembly | Load: 35 MPa Working Pressure | Issue: FZ23-35SH-2 Cylinder worn, causing internal leaks and reduced force output (down to 60% of normal). Solution: Replaced the cylinder with our FZ23-35SH-2 and installed new GB1235-76 30×3.1 Sealing Rings. Result: Force output restored to 100% (35 MPa), internal leaks eliminated, and cylinder temperature stabilized at 55°C. Customer Feedback: “The replacement cylinder fit perfectly—we avoided a 3-day shutdown, saving $18,000 in lost production. It’s been 7 months, and we haven’t had any issues.”
Case 2: Oil Leak in Prudhoe Bay, USA
Location: Prudhoe Bay Oil Field, Alaska, USA | Equipment Model: Oil Discharge System | Load: 28 MPa Pressure | Issue: SDTYF-00-10 Oil Outlet Flange seal failed, leaking 3 gallons of oil per day and causing pressure drops. Solution: Replaced the flange with our SDTYF-00-10 and installed a new GB1235-76 54×3.5 Sealing Ring. Result: Zero oil leaks, system pressure stabilized at 28 MPa, and daily oil consumption reduced by 3 gallons. Customer Feedback: “The flange was easy to install and solved the leak immediately—our maintenance team was back to work in under an hour.”
Case 3: Piston Damage in Daqing Oil Field, China
Location: Daqing Oil Field, Heilongjiang, China | Equipment Model: Hydraulic Actuator | Load: 25 MPa Pressure, 1200 RPM Operation | Issue: FZ23-35SH-10 Piston worn, causing uneven motion and increased energy consumption. Solution: Replaced the piston with our FZ23-35SH-10 and lubricated the cylinder with high-temperature hydraulic oil. Result: Motion became smooth, energy consumption reduced by 8 kWh per day, and piston service life extended to 28 months. Customer Feedback: “The new piston is far more durable than the original—we no longer have to replace it every 12 months, saving us time and money.”
Case 4: Fastener Failure in North Sea Offshore Rig, UK
Location: North Sea Offshore Rig, UK | Equipment Model: Cylinder Cover Assembly | Load: 15 g Vibration, 30 MPa Pressure | Issue: FZ23-35SH-1 Bolt loosened due to vibration, causing cylinder cover leaks. Solution: Replaced the bolt with our FZ23-35SH-1 and torqued it to 85 N·m. Result: Bolt remained secure for 9 months, leaks eliminated, and maintenance frequency reduced by 70%. Customer Feedback: “The bolt holds up even in the harsh offshore conditions—we no longer have to check it daily, freeing up our team for other critical tasks.”
Authority & Enterprise Endorsement
All our FZ23-35SH and SDTYF series parts are manufactured in compliance with international standards, including ISO 9001:2015 quality management system, GB/T 1192-2000 for guide pins, GB1235-76 for O-rings, and API 6D for oil system components. We conduct 100% pre-shipment inspection, including dimensional measurement (with a precision of ±0.01 mm), hardness testing (up to 60 HRC), and pressure testing (up to 50 MPa) to ensure each part meets our strict quality standards. Our manufacturing facility is equipped with CNC machining centers and automated testing equipment, allowing us to produce parts with consistent quality and accuracy. We’ve been awarded the “Industrial Spare Parts Quality Award” by the International Hydraulic Association for 2 consecutive years, and our parts are trusted by 15 of the world’s top 25 oil and gas companies.
FAQ (Frequently Asked Questions)
Question | Answer |
Are your FZ23-35SH series parts compatible with original equipment? | Yes, all our FZ23-35SH parts (including FZ23-35SH-2 Cylinder and FZ23-35SH-1 Bolt) are designed as direct replacements for original equipment, with identical dimensions, materials, and performance. We’ve tested compatibility with major equipment brands, achieving a 99.4% fit rate—no modifications are needed. |
How long do your SDTYF series flanges typically last in oil field applications? | Our SDTYF series flanges (like SDTYF-00-10 Oil Outlet Flange) last an average of 32 months in oil field applications, thanks to their high-strength steel construction and serrated seal face. This is 40 months longer than standard aftermarket flanges, which typically last 24 months. |
Do you provide technical support for installation and troubleshooting? | Yes, we have a team of 18 certified hydraulic engineers available 24/7 to provide technical support via phone, email, or video call. We can guide you through installation, troubleshooting, and maintenance, and we also provide detailed installation manuals for each part. |
What materials are used for your FZ23-35SH-10 Piston? | Our FZ23-35SH-10 Piston is made from high-strength cast iron (HT200) with a PTFE wear-resistant coating. This material combination ensures excellent durability, corrosion resistance, and smooth operation—even in high-pressure hydraulic systems. |
Can you supply bulk orders for maintenance inventory? | Yes, we offer flexible bulk ordering options for maintenance teams and procurement departments. We can fulfill orders of 10 units or more, with competitive pricing and flexible payment terms. We also provide custom packaging options to help you organize and store your spare parts efficiently. |
Procurement Guide
When it comes to industrial spare parts, reliability and compatibility are non-negotiable—every minute of downtime costs you money, and every ill-fitting part adds frustration to your maintenance routine. Our FZ23-35SH series (FZ23-35SH-2 Cylinder, FZ23-35SH-10 Piston) and SDTYF series (SDTYF-00-10 Oil Outlet Flange, SDTYF-00-12 Oil Relief Plunger) parts are engineered to solve these problems, delivering the fit, durability, and performance you need to keep your systems running smoothly. Whether you need a single replacement part for an emergency repair or a bulk order to stock your maintenance inventory, we offer competitive pricing and reliable supply. All our parts come with a 12-month warranty against manufacturing defects, giving you peace of mind. To ensure you get the right part for your equipment, simply provide your equipment model and component requirements, and our team will help you select the perfect match. Choose our parts to minimize downtime, reduce maintenance costs, and keep your industrial operations running at peak efficiency.
contact us ：
Emeil: [email protected]
whatsapp: +86 15275658619