ZJ40 Truck-mounted Drilling Rig Telescoping Cylinder (Z07130000033AA)

1

Telescoping cylinder

Z07130000033AA

High-strength alloy steel (45# steel) main structure, precision forged cylinder body and plunger, surface anti-corrosion treatment (hot-dip galvanizing + anti-rust coating), pressure-tested to 1.5 times the rated pressure (≥25MPa)

1. Long-term high-pressure hydraulic impact causes cylinder body wall fatigue and thinning; 2. Vibration during truck transportation leads to connection loosening and local wear; 3. Outdoor exposure (sunlight, rain, dust) causes surface corrosion and reduced structural strength.

1. Inspect the cylinder surface for corrosion, cracks, or bulges before each drilling operation; 2. Check connection tightness after road transportation to avoid leakage; 3. Regularly clean the cylinder and apply anti-rust oil annually to enhance corrosion resistance.

2

Cylinder body

Z07130200026AA

45# high-strength carbon steel alloy, precision honing inner wall (surface finish ≤Ra0.8μm), outer surface anti-corrosion coating, high pressure resistance and wear resistance

1. High-pressure hydraulic impact and friction with the plunger cause inner wall wear; 2. Improper installation (uneven force) leads to cylinder body deformation; 3. Corrosion from hydraulic oil contamination (moisture, impurities) causes internal rust.

1. Replace hydraulic oil on schedule (every 6 months) to prevent internal corrosion; 2. Ensure uniform force during installation to avoid deformation; 3. Check the cylinder body for oil leakage and deformation monthly.

3

Plunger assembly

Z07130100070AA

40Cr alloy steel, heat-treated (HRC 28-32), precision grinding surface, chrome-plated (thickness 0.05-0.1mm) for anti-corrosion and wear resistance, integrated assembly design

1. Friction with the guiding sleeve and copper sleeve during telescopic movement causes surface wear; 2. High-pressure hydraulic impact leads to plunger rod bending; 3. External collision (drilling tools, debris) causes surface scratches.

1. Inject lubricating grease into the guiding part before each use to reduce friction; 2. Avoid collision with the plunger assembly during drilling operations; 3. Check the plunger surface for scratches and wear monthly, polish if slight or replace if severe.

1

Guiding sleeve

P1101655AA

Aluminum bronze alloy (ZCuAl10Fe3), high wear resistance, good lubricity, precision machined inner and outer surfaces, matching the plunger and cylinder body dimensions

1. Friction with the plunger assembly during frequent telescopic movement causes inner wall wear; 2. Dust and impurities enter the gap, increasing friction and accelerating wear; 3. Lack of lubrication leads to dry friction and damage.

1. Inject lubricating grease regularly (every 3 working days) to ensure lubrication; 2. Clean the guiding sleeve gap regularly to remove dust and impurities; 3. Replace if inner wall wear exceeds 0.1mm to avoid plunger jamming.

2

Copper sleeve

P1100635AA

Tin bronze alloy (ZCuSn10Pb5), high toughness, good wear resistance and lubricity, precision machined, used for auxiliary guiding and wear reduction

1. Uneven force during plunger movement causes local wear; 2. Vibration during transportation leads to copper sleeve displacement and wear; 3. Corrosion from moisture and hydraulic oil contamination causes surface oxidation.

1. Check the copper sleeve for displacement after transportation and reset if needed; 2. Ensure the plunger moves smoothly to avoid uneven force; 3. Clean the copper sleeve surface regularly and apply anti-rust grease when not in use.

1

Sealing ring

P1200378AA

Nitrile butadiene rubber (NBR), high oil resistance, good elasticity, temperature resistance (-30℃ ~ +120℃), suitable for high-pressure hydraulic environments

1. High-pressure hydraulic impact causes seal deformation and wear; 2. Sunlight and temperature changes accelerate rubber aging and cracking; 3. Dust and impurities scratch the seal surface, reducing sealing performance.

1. Check the sealing ring for aging, cracking, or deformation monthly; 2. Clean the seal installation position before replacement to avoid scratches; 3. Replace every 6 months or if leakage is found, use original matching parts.

2

O ring 118X5.3

5300100277

Fluorine rubber (FKM), excellent oil resistance, high temperature resistance (-20℃ ~ +200℃), good corrosion resistance, suitable for harsh hydraulic environments

1. High-pressure extrusion causes O ring deformation and loss of elasticity; 2. Contaminated hydraulic oil (impurities) scratches the O ring surface; 3. Long-term use leads to rubber fatigue and aging.

1. Do not exceed the maximum rated pressure of the O ring; 2. Replace hydraulic oil and filters on schedule to avoid contamination; 3. Store unused O rings in a cool, dry place away from sunlight.

3

Dust ring J110

5300300084

Polyurethane (PU), high wear resistance, good elasticity, dust-proof and waterproof performance, tight fit with the plunger surface

1. Friction with the plunger during telescopic movement causes surface wear; 2. Dust and debris accumulate on the dust ring, increasing friction; 3. External impact causes dust ring deformation and damage.

1. Clean the dust ring surface daily to remove dust and debris; 2. Check for deformation or wear monthly, replace if needed; 3. Avoid dragging the plunger on the ground to prevent dust ring damage.

4

Sealing washer 27

5301600027

Copper alloy (H62), soft texture, good sealing performance, pressure resistance, used for thread connection sealing

1. Over-tightening during installation causes washer deformation and loss of sealing performance; 2. Repeated disassembly leads to washer wear; 3. Corrosion from moisture and hydraulic oil causes surface rust.

1. Tighten the thread connection appropriately, avoid over-tightening; 2. Replace the sealing washer after 2-3 times of disassembly; 3. Apply anti-rust grease to the washer surface before installation.

1

Washer

P1700312AA

Carbon steel (Q235B), surface galvanized, thin-walled design, used for shock absorption and anti-loosening of fasteners

1. Long-term compression leads to washer deformation and loss of shock absorption performance; 2. Corrosion causes rust and breakage; 3. Improper installation causes uneven force and damage.

1. Check the washer for deformation before reuse; 2. Ensure correct installation direction (smooth side facing the nut); 3. Replace if rust or deformation is found.

2

Nut

P8000179AA

Carbon steel (4.8 grade), surface galvanized, precision threaded, high toughness, used for fixing flange and other components

1. Thread wear caused by frequent disassembly; 2. Vibration during transportation leads to loosening and secondary wear; 3. Corrosion causes rust and jamming.

1. Check and re-tighten nuts before and after transportation; 2. Apply anti-loosening glue to the thread if necessary; 3. Replace if thread damage or rust is found.

3

Flange

P4600013AA

Carbon steel (Q235B), precision machined, surface anti-corrosion coating, used for connecting the cylinder body to other components

1. Uneven force during installation causes flange deformation; 2. High-pressure hydraulic impact leads to flange connection loosening; 3. Corrosion from outdoor environment causes surface rust.

1. Ensure the flange is evenly stressed during installation; 2. Check the flange connection for loosening monthly; 3. Clean the flange surface regularly to prevent corrosion.

4

Set screw M8X30

4315908030

Carbon steel (45# steel), heat-treated, precision threaded, surface galvanized, used for fixing guiding sleeve and other components

1. Vibration during transportation and operation leads to screw loosening; 2. Over-tightening causes thread deformation; 3. Corrosion causes rust and jamming.

1. Tighten the set screw to the specified torque during installation; 2. Check and re-tighten regularly (every 5 working days); 3. Apply anti-rust grease to the thread after installation.

5

M27X2-1/2" bushing

QBJ10072704

Carbon steel (45# steel), precision threaded, surface galvanized, used for adapting different thread sizes of connections

1. Thread wear caused by frequent disassembly; 2. Vibration leads to loosening and leakage; 3. Corrosion causes rust and thread jamming.

1. Apply thread sealant before installation to enhance sealing; 2. Use a torque wrench to tighten to the specified torque; 3. Replace if thread wear or corrosion is found.

6

Z1/2" plug

QBJ120104

Carbon steel (45# steel), precision threaded, surface galvanized, used for sealing unused pipeline ports

1. Thread wear caused by frequent disassembly; 2. Vibration leads to loosening and air/hydraulic oil leakage; 3. Corrosion causes rust and poor sealing.

1. Tighten the plug firmly during installation; 2. Check for loosening after transportation; 3. Apply anti-rust grease to the thread when not in use for a long time.

1

Check valve

P9000047AA

Carbon steel (45# steel) valve body, stainless steel (304) valve core, precision machined, pressure maintaining performance up to 25MPa

1. Hydraulic oil contamination (impurities) causes valve core jamming and wear; 2. High-pressure impact leads to valve core deformation; 3. Long-term use causes valve seat wear and poor sealing.

1. Replace hydraulic oil and filters on schedule to avoid contamination; 2. Check the check valve for pressure maintaining performance quarterly; 3. Disassemble and clean the valve core annually, replace if worn.

2

Spring

P0900038AA

65Mn spring steel, heat-treated, high elasticity and fatigue resistance, working temperature (-40℃ ~ +150℃), used for check valve reset

1. Long-term compression leads to spring fatigue and loss of elasticity; 2. High-temperature environment accelerates spring aging; 3. Corrosion from moisture causes surface rust and breakage.

1. Check the spring for deformation and elasticity quarterly; 2. Replace the spring every 12 months to avoid fatigue failure; 3. Store in a dry place when not in use to prevent corrosion.

3

Spring seat

P6301009AA

Carbon steel (Q235B), precision machined, surface anti-corrosion coating, used for fixing and positioning the spring

1. Friction with the spring during repeated reset causes surface wear; 2. Vibration leads to spring seat displacement and deformation; 3. Corrosion causes surface rust and reduced structural strength.

1. Check the spring seat for displacement after transportation; 2. Clean the spring seat surface regularly to prevent corrosion; 3. Replace if deformation or severe wear is found.

4

Air exhausting plug

Z07120200001AA

Carbon steel (45# steel), precision threaded, surface galvanized, used for exhausting air in the cylinder

1. Thread wear caused by frequent disassembly during air exhaust; 2. Dust and impurities block the exhaust port; 3. Corrosion causes rust and jamming.

1. Exhaust air from the cylinder before each drilling operation; 2. Clean the exhaust port regularly to avoid blockage; 3. Apply thread sealant after installation to prevent air leakage.

5

Nameplate

P1000365AA

Stainless steel (304), corrosion-resistant, laser-engraved with product model, parameters, and production date, firmly attached to the cylinder body

1. Outdoor exposure (sunlight, rain) causes text fading; 2. External collision causes nameplate deformation or falling off; 3. Dust and debris accumulation covers the text.

1. Clean the nameplate surface regularly to keep text clear; 2. Avoid collision with the nameplate during operation; 3. Reattach or replace if the nameplate falls off or text fades.

1

Are all these accessories fully compatible with the Z07130000033AA telescoping cylinder of the ZJ40 Truck-mounted Drilling Rig?

Yes, all accessories are specially designed and produced for the Z07130000033AA telescoping cylinder of the ZJ40 Truck-mounted Drilling Rig. Each part’s model and size strictly match the original equipment, ensuring 100% compatibility. They also comply with API 6A and SAE J517 standards, guaranteeing stable connection, tight sealing, and reliable operation in mobile drilling scenarios.

2

How often should key wearing parts of the telescoping cylinder be replaced, and what are the key points?

Key replacement cycles (for mobile drilling scenarios): Sealing components (sealing ring, O ring, dust ring) every 6 months; guiding sleeve and copper sleeve every 12 months; spring every 12 months; fasteners (nuts, set screws) every 8-10 months. Key points: Use only original matching parts; check wear status regularly before replacement; follow correct disassembly and assembly procedures to avoid damaging other components.

3

What should I do if the telescoping cylinder leaks hydraulic oil, and how to prevent such faults?

Troubleshooting: First, check the sealing components (sealing ring, O ring, sealing washer) for aging, damage, or deformation—replace if needed; then check the thread connections (bushing, plug, flange) for loosening or thread wear, re-tighten or replace. Prevention: Conduct daily leak checks; replace sealing components on schedule; use clean hydraulic oil; avoid over-tightening fasteners; clean the cylinder surface regularly to prevent corrosion.