Delta PLC Controlled 8 Ton Load Long Cylinder Honing Equipment

1. High‑Rigidity Cast Machine Bed

The bed is resin‑sand cast iron with normalization and double aging stress‑relief treatment. Rolling linear guide rails are mounted for high‑speed reciprocating travel of honing box. Precision heat‑treated helical rack is installed inside the bed for stable power transmission. Oil‑receiving trough surrounds the bed frame to collect honing oil and avoid liquid overflow. Four sets of honing‑bar supports are arranged along guide rail to absorb tool vibration during 10‑meter long‑stroke honing.

2. Honing Spindle Box

Driven by 15 kW servo motor via gear reduction unit. Gears are precision‑ground and high‑frequency quenched to tooth‑surface hardness HRC48‑52, featuring high strength and impact resistance. Spindle adopts combined cylindrical‑roller plus thrust‑ball bearing configuration, capable of bearing large axial and radial cutting force. Internal splash lubrication protects gears and bearings. Spindle speed is stepless adjustable within 10‑130 r/min.

3. V‑Type Workpiece Carriers & Pipe‑Chain Clamping System

Two sets of V‑shape workpiece carriers are equipped. V‑blocks realize centering adjustment by positive‑reverse lead‑screw. Workpieces rest on V‑blocks and are firmly locked by pipe‑chain clamp. Anti‑slip liners are fitted on V‑block contact surface to prevent workpiece rotation in honing process. Carriers can be manually adjusted to adapt workpieces with different outer diameters.

4. Multi‑Set Honing‑Bar Supports

Total four sets honing‑bar supports: one set fixed on machine bed, three sets movable supports sliding on linear guide rails. They firmly hold long honing mandrel, reduce tool shaking and improve hole straightness and inner‑surface finish in ultra‑long‑stroke honing.

5. Dual‑Mode Oil‑Supply Cooling & 20μm Filtration System

Large‑volume 950 L oil tank is equipped, supporting external oil‑spray and internal oil‑feed switchable oil supply. Internal oil feed max flow 40 L/min; external oil spray max flow 60 L/min. Combined paper‑tape filter and magnetic‑roller filter realize final 20 μm filtration accuracy, removing fine metal abrasives to protect honing head and extend honing‑oil service life. Pressure, flow, liquid‑level and temperature data are centrally displayed on touch‑screen HMI.

6. Lubrication & Oil‑Baffle Device

Automatic lubrication station provides timing‑quantitative lubrication for guide‑rail sliders with low‑liquid‑level alarm function. Gears and bearings inside honing box adopt splash lubrication. Movable oil‑baffle assemblies are arranged at workpiece inlet & outlet to block splashing honing oil.

7. Delta PLC Intelligent Control System

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

Core Machining Accuracy

Hole dimensional tolerance: IT7‑IT8

Inner hole surface roughness: Ra0.2‑0.4 μm

Main Technical Parameters

Processing Range Honing diameter: Φ50‑Φ500 mm Max honing depth: 10000 mm Max workpiece length: 10000 mm Workpiece outer diameter: Φ80‑Φ650 mm Max workpiece weight: 8 tons Center height:514 mm Total installed power:26 kW

Honing‑Box Unit Spindle speed:10‑130 r/min stepless, main motor 15 kW servo motor

Feed & Honing‑Head Expansion Z1‑axis reciprocating feed speed:1‑40 m/min, servo motor 7.5 kW /48 Nm Z2 honing‑head expand‑contract servo motor:0.75 kW /2.39 Nm

Cooling System Oil‑tank volume:950 L, filtration precision:20 μm Internal oil‑supply max flow:40 L/min External oil‑spray max flow:60 L/min

Standard Equipped Parts

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

Optional Custom Accessories

Custom‑size honing heads, honing bars and matching auxiliary sleeves; special honing oil; customized fixtures; alternative brand CNC system; special‑spec voltage transformer for different‑country power grid.

Main Famous‑Brand Core Components

Control System: Delta PLC + Touch‑screen HMI

Honing‑box main motor: MK domestic well‑known brand

Spindle bearings: Domestic top‑grade bearing brand

Precision rack: Taiwan YYC or equivalent brand

Low‑voltage electrical parts: SIEMENS / SCHNEIDER

Applicable Processing Workpieces

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

Hydraulic industry: large‑size long hydraulic cylinder tube full‑length honing; repair taper, ovality and local aperture defects

Pneumatic equipment: heavy large‑bore air‑cylinder inner‑hole precision finishing

Engineering machinery: 10‑meter‑level heavy thick‑wall cylinder barrel honing processing

Energy & heavy‑industry: large‑diameter seamless tubular workpiece inner‑hole correction and high‑gloss 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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