Forged Trolley Wheel Free Forging for Heavy-Duty Port Crane and
Stacker. Systems is a high-strength forged component engineered for
repetitive load-bearing and rolling operations in harsh port and
industrial environments. Manufactured from premium alloy or carbon
steel grades such as 42CrMo4, these wheels are designed for
exceptional surface hardness, impact resistance, and fatigue
life—ideal for cranes operating under frequent start-stop cycles
and lateral stress.
With precision open-die forging and heat treatment processes, each
wheel achieves uniform grain structure and dimensional integrity.
Forged profiles can include integrated flanges, bores, and
customized tread geometries to meet the operational demands of
gantry cranes, bridge cranes, RTGs, container stackers, and
rail-guided systems.
Key Features:
Superior fiber grain flow and dense internal structure for enhanced
durability
High surface hardness with a tough core for long service life under
heavy loads
Capable of integral forging of flanges, hubs, and bore sections to
ensure concentricity
Supports various heat treatment options such as normalizing,
quenching & tempering, and surface hardening
Common Types:
Flanged forged wheels for guided rail operations (e.g., RTG and
gantry cranes)
Non-flanged wheels for unguided rolling systems
Solid or hollow designs, depending on load and weight optimization
needs
| Item | Details |
|---|
| Product Name | Forged Trolley Wheel Free Forging for Heavy-Duty Port Crane and
Stacker Systems |
| Material Grades | - High-strength alloy steels: 42CrMo4 - Carbon steels: 45#-
Excellent wear resistance, surface hardness, and impact toughness
for repetitive rolling in port environments |
| Forging Equipment | - Hydraulic hammers: 5T / 8T / 12T- 3600T open-die forging press
for large-diameter solid and hubbed wheel forgings- Supports
integral forging of wheel tread, flange, and bore |
| Manufacturing Process | Hot Forging → Normalizing / Quenching + Tempering → Ultrasonic
Testing → Rough / Semi-Finish Machining → Dimensional & Surface
Inspection |
| Forging Ratio | ≥ 3.0 — Promotes directional grain flow for enhanced fatigue
strength and structural integrity under cyclic rolling loads |
| Applications | - Trolley wheels for port gantry cranes, RTGs, and ship-to-shore
cranes- Travel wheels for container stackers, yard trolleys, and
industrial transfer carts- Suitable for rail-mounted and
rubber-tyred crane systems |
| Heat Treatment Options | - Quenched + Tempered for high hardness and core toughness-
Normalizing for grain refinement and dimensional control- Optional
stress relieving before finish machining |
| Testing & Inspection | - Chemical: Spectrometer-controlled alloy analysis- Mechanical:
Hardness, tensile, yield strength, impact testing (longitudinal &
transverse)- Ultrasonic (UT): 100% flaw detection across wheel
volume- Dimensional: Tread concentricity, flange thickness, bore
tolerance, roundness |
| Value-Added Services | - Pre-machining: flange surfaces, bores, keyways, and tread
profiles- - Full material traceability: heat number, forging batch,
inspection certification |
The steel forgings production flow:
Raw material steel ingot into warehouse(test the chemical
composition) → Cutting→ Heating(Furnace temperature test) → Heat
treatment after forging(Furnace temperature test) Discharge the
furnace(blank inspection)→ Machining→ Inspection(UT,MT,Visal
dimension, hardness)→ QT→ Inspection(UT, mechanical properties,
hardness, grain size)→ Finish machining→ Inspection (dimension)→
Packing and Marking(steel stamp, mark)→ Storage Shipment.
Frequently Asked Questions (FAQs)
1. What is your forging weight range?
We produce forged parts ranging from 100 kg to 7000 kg.
2. Do you provide heat treatment and machining?
Yes, we offer full in-house heat treatment, rough, and finish
machining services.
3. Which industries do you supply to?
We serve wind energy, heavy equipment, port machinery, transmission
systems, and more.
4. What is your production lead time?
With stock: Around 30 days
Without stock: 40–45 days
5. Where is your factory located?
In Changzhou City, near Shanghai, with shipping via Shanghai Port.
Request a Quote
Please send your technical drawings and requirements to us. Our
engineers will review and provide you with a professional quotation
and solution shortly.
