PLC Controlled Hydraulic Cylinder Deep Hole Honing Equipment

1. High‑Rigidity Cast Machine Bed

Integral cast bed after two‑time stress‑relief aging treatment. Rolling linear guide rails are mounted for honing box reciprocating travel. Precision heat‑treated helical rack is installed inside the bed for stable power transmission. Oil‑receiving pan is arranged around the bed to collect honing oil and avoid liquid spillage. Multiple sets of movable honing‑bar supports are arranged along the guideway to absorb tool vibration during long‑stroke honing.

2. Honing Spindle Box (Mandrel Box)

Driven by 11 kW servo spindle motor via gear reduction unit. Gears are precision‑ground with high‑frequency quenching for high strength and impact resistance. Spindle adopts combined cylindrical‑roller plus thrust‑ball bearing configuration, which can bear large axial and radial cutting force. Internal circulating oil lubrication extends service life of gears and bearings. Spindle speed range 10‑260 r/min, stepless adjustable.

3. V‑Shape Workpiece Support & Clamping System

Equipped with multiple sets of V‑type workpiece brackets. The V‑blocks realize centering movement by positive‑reverse lead‑screw adjustment. Workpieces rest on V‑blocks and are firmly locked by pipe‑chain clamp. Anti‑slip lining pads on V‑block surface prevent workpiece rotation during honing process. Brackets can be manually adjusted to fit workpieces with different outer diameters.

4. Multi‑Set Honing Bar Supports

Total 4 sets honing‑bar supports: one fixed support mounted on bed, three movable supports sliding on linear guide rails. They hold long honing mandrel firmly, reduce tool shaking and improve hole straightness and surface finish during 10‑meter long‑stroke honing.

5. Integrated Honing Oil Cooling & Filtration System

Large‑volume 600L oil tank, supporting two oil‑supply modes: external oil spray and internal oil feed, switchable on operation panel.

Internal oil feed: max flow 60 L/min;

External oil spray: max flow 100 L/min. Equipped with paper‑tape filter and magnetic‑roller filter, final filtration precision reaches 20 μm to remove fine metal abrasives, protect honing head and prolong oil service life.

6. Lubrication & Oil‑Baffle Device

Automatic lubrication station supplies timing‑quantitative lubrication for guide‑way sliders with low‑liquid‑level alarm function. Gears and bearings inside honing box are splash‑lubricated by internal mechanical oil. Two movable oil‑baffle assemblies are arranged at workpiece inlet & outlet to block splashing honing oil.

7. PLC Intelligent Control System

Adopt Delta PLC control system with rotatable touch‑screen HMI. Operators can set reciprocating speed, spindle rotation speed and honing‑head expansion parameters directly on screen. Multiple safety interlock protections are integrated: lubrication shortage alarm, cooling‑liquid level protection, spindle & feed motor overload protection, pump fault alarm, travel limit protection. Electric cabinet is equipped with air‑conditioner for stable running of electrical components.

Core Machining Accuracy

Honing hole dimensional tolerance: IT7‑IT8

Inner hole surface roughness: Ra0.4‑0.8 μm

Local honing function: Correct taper, ovality and partial aperture error for long cylinder tubes

Main Technical Parameters

Processing Range Honing diameter: Φ30‑Φ200 mm Max honing depth: 10000 mm Max workpiece length:10000 mm Workpiece outer diameter: Φ60‑Φ350 mm Max workpiece weight:3 tons Floor space:26 m × 2.5 m, total installed power:18 kW

Honing Spindle Box Spindle speed: 10‑260 r/min stepless, main motor 11 kW

Feed & Honing‑Head Expansion Z‑axis reciprocating speed: 1‑18 m/min, servo motor 4.3 kW /27 Nm Honing‑head expand‑contract servo motor:0.75 kW /2.39 Nm

Cooling System Oil‑tank volume:600 L, filtration precision 20 μm Internal oil‑supply max flow:60 L/min; External oil‑spray max flow:100 L/min

Standard Equipped Parts

Heavy‑duty cast bed, honing spindle box, 3 sets V‑type workpiece brackets, 4 sets honing‑bar supports, complete cooling‑filtration unit, Z‑axis servo feed carriage, automatic lubrication station, Delta PLC control cabinet with air‑conditioner, two‑set movable oil‑baffle devices, machine leveling wedges & anchor bolts, full mechanical‑electrical operation manuals, foundation drawing, factory inspection certificate.

Optional Custom Accessories

Custom‑size honing heads, honing bars and matching auxiliary sleeves; special honing oil; customized fixtures; additional filter units.

Main Famous‑Brand Core Components

Control System: Delta PLC + Touch‑screen HMI

Honing‑box main motor: Domestic well‑known EMK brand

Spindle bearings: Domestic top‑grade bearings

Precision rack: Taiwan YYC or equivalent brand

Feed servo motors: Wuhan Maxin

Low‑voltage electrical parts: SIEMENS / SCHNEIDER

Applicable Processing Workpieces

This long‑stroke deep hole honing machine is specially used for precision inner‑hole finishing of hydraulic and pneumatic cylinder barrels:

Hydraulic industry: long hydraulic cylinder tube honing, repair taper & ovality defects

Pneumatic equipment: large‑size long air cylinder inner‑hole finishing

Engineering machinery: 10‑meter‑level heavy cylinder barrel precision honing

General heavy‑industry: long seamless tubular workpiece inner‑hole correction & finishing

Official Website Links

Deephole series Web: www.dzgljc.com

Heavy duty lathe series Web: www.novatechlathe.com

Contact Information

Contact me: Tina

WhatsApp:+86 17857586156

Email: dezhou@dzguanlu.com

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