FAQ
Reconditioned machines can be cost-effective if professionally refurbished, load-tested, and supplied with test reports and limited warranties. For mission-critical high-voltage work, new machines provide longer service life and manufacturer warranty. We sell both new and certified reconditioned units with documentation.
Bullwheel pullers provide controlled pulling via large friction wheels (good for heavy conductors and long pulls), while capstan winches offer flexible line-handling for lighter duties. Bullwheels handle higher continuous loads; choose based on conductor size, pull length and rope type (synthetic vs wire).
Store sheaves clean, dry and protected from impact; wrap or crate to avoid nicks. During transport secure against shock and vibration; pack grooves so they don’t rub on other hardware. Keep a log of serials and manufacturer inspection dates. Proper storage extends life and prevents failure in the field.
Lead times depend on model availability and stock levels — typical ranges are 2–12+ weeks for manufacturing plus transit time. Sea freight is economical for heavy units, air for urgent parts. Confirm current lead times in your RFQ as logistics and component availability remain variable.
Essential spares include spare sheaves, bearings, keeper pins, hydraulic filters, hoses, seals, spare ropes/straps, and a dynamometer calibration check kit. Customize the kit per the machine model and local shipping lead times. We offer pre-packed rapid-response spare kits for global shipping.
Follow manufacturer recommendations — inspect daily before use, perform monthly lubrication and quarterly hydraulic/system checks, and annual comprehensive inspection including load testing. Keep maintenance logs and stock critical spares (seals, bearings, hydraulic filters) to prevent downtime. Maintenance intervals vary with usage intensity.
Live-line work requires specialized insulated tools and certified live-line crews. Most heavy tensioning is done de-energized and grounded. If live-line methods are required, request our insulated tool options and hot-stick-compatible accessories and ensure compliance with local live-line regulations and training requirements.
Machines are factory load-tested and come with test reports, CE/ISO documentation where applicable, and operation manuals. We also support third-party FAT inspections and provide calibration/certificates for dynamometers on request. Provide purchase order details and we’ll include the required certification package.
Rent if you have intermittent projects or need to trial equipment; buy if utilization is high enough to justify capex, and you have maintenance capability. Consider financing, downtime risk, spares access, and total cost of ownership. We offer purchase, leasing and short/long-term rental options to match project needs.
Calculate using cable weight, duct friction coefficient, number of bends, lubricant performance, and length. Use manufacturer pulling tables or calculators; for long/heavily-bent runs stage reels or intermediate winches to limit peak tension. When in doubt, consult cable maker for max allowable tension to avoid jacket or conductor damage.
Use sheave diameters that meet or exceed recommended minimum bending radii for the conductor to prevent strand damage. For compact/HTLS conductors, larger sheaves and multi-roller fairleads reduce localized pressure. Check conductor manufacturer installation guidelines and ensure sheave grooves are clean, properly lubricated and free of burrs.
Yes. Remote wireless control reduces exposure to hazards and improves precision. Options include wireless joysticks, integrated dynamometers, PLC control and automated tension setpoints (CTCS). Remote features speed setups and allow single-operator control for many actions; field training is required to use them safely and effectively.
Yes — we offer tensioners and sheaves rated for HTLS, ACCC, and compact conductors. HTLS types require careful matching for higher operating temperatures and different strand geometry; we recommend specific sheave diameters, roller profiles and tension control settings to avoid strand damage and ensure correct sag. Provide conductor datasheets for tailored recommendations.
Yes. We provide on-site commissioning, operator training, and maintenance instruction packages worldwide. Training covers safe setup, tension control, remote operation, routine inspections, and troubleshooting. Commissioning includes factory acceptance tests (FAT) documentation and site acceptance to verify equipment performance under job conditions.
Inspect sheave surfaces for cracks/wear, check bearings and swivel action, inspect frames for deformation, verify keeper pins and ball-pin locks, confirm sheave diameters meet conductor requirements, and ensure lubrication. Replace worn or cracked sheaves, and document inspections in a pre-job checklist to meet safety and warranty requirements.
Temporary grounding protects crews from induced or residual voltages. Install grounding sets per local utility standards and regulations, ensuring proper clamp placement, cable sizing and multiple grounds where needed. Train crews on grounding sequences and confirm de-energized status before work near live parts. Always follow national/regional electrical safety codes and job-specific risk assessments.
Use slow-drying gel or wax lubricants specifically designed for XLPE and long pulls (Polywater J, PJ, NN types are industry examples). Apply per cable and lubricant manufacturer guidance — pump/ pour methods for long ducts reduce friction and pulling tension. Confirm chemical compatibility with jacket and duct materials and follow vendor pulling tables for tension estimates.
Constant tension control maintains a set conductor tension throughout payout and pull-in to prevent slack or overload. CTCS systems avoid jerking or bouncing, protect conductor integrity (especially HTLS and compact conductor types), and improve sag accuracy. They are standard on modern tensioners and recommended for long spans, bundled conductors, or projects with tight sag tolerances.
Match equipment capacity to conductor type (ACSR/OPGW/ADSS/HTLS), conductor diameter, required stringing tension, and max span load. Provide conductor specs (weight/dia), longest span, and temperature/sag targets. We’ll recommend a model based on required kN ratings, sheave size, and braking/payout control capability. Always include a safety margin above calculated tension.
Yes. Drones are increasingly used to carry lightweight pilot ropes and pull-in lines across difficult terrain, speeding initial line deployment and reducing helicopter costs. Drones are typically used only for pilot-line deployment — the heavy conductor pulls are then completed with standard tensioners and pullers. Always verify regulatory compliance and plan for wind, battery life, and safety contingencies.
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