Short answer: YT28 is not automatically the better replacement for every YT24. The first question is which YT24 configuration you actually have. Published YT24C and TY24 data differ in cylinder size, hose size, impact frequency, and air consumption, while the current PerfoMax YT24 page intentionally requires the exact suffix before quotation. By contrast, a verified YT28 reference configuration uses an H22 × 108 mm shank, a 34–42 mm hole range, a 25 mm air hose, and air consumption of ≤55 L/s at 0.50 MPa and ≤81 L/s at 0.63 MPa.
For a mine, quarry, tunneling contractor, or distributor, the practical selection rule is therefore simple: compare the exact model at the same test pressure, then verify tool-inlet pressure and flow, hose size, air-leg interface, drill steel, and planned hole range. Do not buy from the base model number alone.
1. When Does YT24 vs YT28 Become a Real Selection Decision?
The comparison matters when both models appear capable of drilling the same general blast-hole range but the job site has different constraints. Typical examples include:
- a small underground heading where compressor capacity is limited;
- a contractor deciding whether an existing hose network can support a higher-demand drill;
- a distributor replacing an older YT24-family unit with YT28;
- a quarry standardizing H22 × 108 mm drill steel across multiple air-leg drills;
- a buyer who has only a photo or “YT24” nameplate but no confirmed suffix;
- a site where more than one rock drill operates from the same compressor at the same time.
In these cases, headline impact energy or model size is only one variable. A drill that cannot receive its required pressure and airflow at the tool inlet while drilling will not deliver the catalog condition used to publish its performance figures.
2. First Identify Whether “YT24” Means YT24C, TY24, or Another Supplier Configuration
This is the most important procurement step. “YT24” is often used as a family name, but the current PerfoMax YT24 page treats YT24C and TY24 as separate identification states. The family name alone does not approve a supplied model, air leg, hose, drill steel or spare-parts package.
Before comparing the unit with YT28, record:
- full model marking, including suffix;
- supplier and controlled data-sheet revision;
- air inlet, hose and lubricator specification;
- air-leg model, suffix and mounting interface;
- drill-steel shank and bit-end connection;
- water connection and wet-drilling arrangement;
- spare-parts catalogue or drawing revision.
The PerfoMax YT24-Series inquiry page deliberately blocks model-specific approval until these inputs are confirmed. If the suffix cannot be read, classify the request as identification required rather than averaging specifications from unrelated listings.
3. YT24-Family vs YT28: Compare Controlled Evidence, Not Family Names
The table below is a selection-control table, not an interchangeability promise. YT24-family details must come from the data sheet for the identified suffix. The YT28 column shows only the current reference points published on the active PerfoMax YT28 page; the quotation and attached supplier data sheet still control the ordered configuration.
| Decision input | YT24-family control | Current YT28 reference | Buyer action |
|---|---|---|---|
| Model identity | Confirm YT24C, TY24 or another fully marked configuration. | Confirm the quoted YT28 manufacturer, revision and configuration ID. | Do not approve either model from the base family name alone. |
| Air requirement | Use the controlled data sheet for the exact suffix and pressure condition. | The active PerfoMax page lists reference air consumption of ≤55 L/s at 0.50 MPa and ≤81 L/s at 0.63 MPa. | Compare values at the same pressure and verify loaded pressure at the tool inlet. |
| Drill-steel interface | H22 × 108 class is the current inquiry reference; confirm the supplied shank. | H22 × 108 is the current reference. | Also verify rod length, taper or bit-end connection and wear condition. |
| Hole plan | Define diameter, depth, orientation and rock condition before model approval. | The active PerfoMax page lists a 34–42 mm reference hole range. | Use the project hole plan and controlled quotation, not the shared headline range alone. |
| Air leg | Confirm exact model, suffix, mounting and travel. | Use only the air-leg pairing approved in the quotation and supplier manual. | Treat reuse as a compatibility check, not an assumption. |
| Service and spares | Lock the model/revision-specific parts list. | Lock the quoted YT28 parts and document revision. | Do not consolidate kits until part-number equivalence is proven. |
What should a buyer conclude? YT24 and YT28 must be compared as complete, controlled systems. A common shank class or overlapping hole range does not prove that the drill body, air leg, hoses, controls or service parts are interchangeable.
4. Does YT28 Need a Larger Compressor Than YT24?
Often it can demand more air than a lower-demand YT24 configuration, but compressor selection cannot be made from the model name alone. The compressor must supply enough flow at the pressure required at the rock drill inlet under load. The required comparison point is loaded pressure and flow at the tool inlet, because restrictions between the compressor and drill can change the delivered condition.
For a practical air-system check, calculate or verify these variables:
- Number of simultaneous drills. Two drills can roughly double the tool demand before other system loads are included.
- Required tool-inlet pressure. Do not use receiver pressure or compressor nameplate pressure as a substitute for loaded pressure at the drill.
- Required flow at that pressure. Use the exact model’s controlled data sheet.
- Hose internal diameter and length. Long, undersized, damaged, or highly restrictive hoses increase pressure loss.
- Couplings, valves, filters, lubricators, and manifolds. Restrictions accumulate through the distribution system.
- Altitude and ambient conditions. Compressor delivered capacity can change with site conditions.
- Other pneumatic loads. Air-leg feed, blow functions, and other tools sharing the line must be included in the system budget.
A useful field test is to measure pressure as close to the tool inlet as safely practical while the drill is working, then compare the observed condition with the relevant manual or quotation. If the drill only reaches the expected performance when other tools are disconnected, the problem may be the air system rather than the rock drill model.
5. Can YT24 and YT28 Use the Same H22 × 108 mm Drill Steel?
Both the current PerfoMax YT24-family page and the verified YT28 reference support H22 × 108 mm-class drill-steel applications. That makes drill-steel standardization possible in some fleets, but it does not prove that every existing rod and bit can be moved between machines without checking.
H22 × 108 mm describes the shank interface at the rock drill. The far end of a tapered rod still has its own taper angle and bit connection. Rod length, taper angle, bit diameter, wear condition, and the exact chuck/shank fit must also match the drilling system.
If you are building a replacement package, verify the rock drill together with the PerfoMax H22 × 108 mm tapered drill rod option and the intended bit connection rather than ordering the drill and consumables as unrelated items.
6. Can You Reuse the Same Air Leg When Changing from YT24 to YT28?
Do not assume so. “FT160” is also a family designation, and suffixes can represent different dimensions or pairing references. The current PerfoMax YT24 page requires the approved air-leg suffix and mounting interface to be confirmed. The YT28 page likewise states that the final air-leg combination must follow the quoted supplier manual.
Before reusing an existing leg, confirm:
- exact air-leg model and suffix;
- mounting / pivot interface;
- overall and retracted length;
- feed stroke;
- hose and control connections;
- operating pressure range;
- condition of seals, tubes, claws, and locking components.
For model identification, use the PerfoMax FT160-Series Pneumatic Air Legs page and submit the complete suffix rather than only “FT160.”
7. Seven-Step YT24 vs YT28 Selection Workflow
- Identify the exact YT24 model. Photograph the nameplate and record YT24C, TY24, or other suffix/manufacturer information.
- Define the hole plan. State required hole diameter, typical depth, drilling orientation, rock condition, and wet-drilling requirement.
- Confirm the drill steel. Record H22 × 108 mm shank, rod length, taper angle, and bit diameter.
- Confirm the air leg. Record model, suffix, dimensions, mounting interface, and whether the leg is being reused.
- Audit the air system. Record compressor make/model, rated delivery, operating pressure, hose ID and length, number of simultaneous tools, and loaded tool-inlet pressure if available.
- Compare like-for-like data. Match pressure conditions before comparing impact frequency, air consumption, or drilling performance.
- Make the quotation control the configuration. Require the supplier’s data sheet/drawing for the exact model, air leg, hose, and drill-string interface to be attached to the order.
8. Common Procurement Mistakes That Create Cost in the Field
| Mistake | Why it causes loss | Better control |
|---|---|---|
| Ordering only “YT24” | YT24C, TY24, and supplier variants can publish different dimensions and air requirements. | Record suffix, supplier, and controlled data sheet. |
| Comparing air consumption at different pressures | The same model can show very different flow figures at 0.50 vs 0.63 MPa. | Compare at the same pressure and test basis. |
| Sizing from compressor discharge pressure | Hose and distribution losses mean the drill may see less pressure under load. | Check required flow and loaded pressure at the tool inlet. |
| Reusing an undersized hose automatically | Excessive pressure drop can make a correctly selected drill perform poorly. | Match hose ID and length to the exact drill/manual and site layout. |
| Assuming H22 × 108 means the whole drill string is interchangeable | Taper angle, rod length, bit diameter, and wear condition still matter. | Verify the complete drill-steel chain. |
| Reusing an air leg by family name only | Suffixes and mounting dimensions can differ. | Match exact air-leg suffix and interface. |
| Choosing only by catalog drilling speed | Published speed depends on rock, bit, pressure, flow, feed, and operator conditions. | Use site conditions and a controlled trial when the decision is material. |
9. Fleet Standardization and Replacement Approval Matrix
A one-for-one drill choice is different from a fleet decision. Standardizing on YT24, standardizing on YT28 or operating a controlled mixed fleet changes compressor loading, operator training, air-leg and hose inventories, drill-steel control and spare-parts risk. Use the matrix below before releasing a replacement programme or bulk order.
| Approval point | Evidence to compare | Release condition |
|---|---|---|
| Application envelope | Hole diameter and depth, drilling orientation, rock condition, heading space, rod length and handling limits. | The proposed model covers the actual work without relying on an unverified catalogue maximum. |
| Air-system capacity | Site-rated compressor delivery, loaded tool-inlet pressure, hose/manifold losses, duty cycle and maximum simultaneous drills. | The system supports the intended fleet under a loaded multi-drill test or a documented calculation with margin. |
| Drill steel and bits | Shank, rod length, taper or bit-end interface, bit diameter and condition limits. | Every transferred consumable has a verified interface; “H22” alone is not accepted as full compatibility. |
| Air leg and controls | Exact air-leg suffix, mounting, travel, thrust/control arrangement, hose and water connections. | Pairing is approved for each drill configuration and recorded by model/revision. |
| Hoses, couplings and lubricators | Inside diameter, length, pressure rating, connection type, restraint and lubrication arrangement. | No adapter or restriction is left to field improvisation. |
| Spares and revision control | Parts catalogue, drawing revision, serial range, special tools and proposed service kit. | Shared parts are consolidated only when part-number or drawing equivalence is documented. |
| Training and service | Operating, shutdown, fault-isolation and overhaul differences; technician tools and records. | Operators and maintainers receive the procedure for the exact retained models. |
| Controlled field trial | Same rock zone, bit and rod class, operator window, loaded inlet pressure and recorded penetration/air-system observations. | The trial proves the operational decision without transferring one model’s result to another configuration. |
Fleet Decision Gate
| Decision | Use it when | Required action |
|---|---|---|
| STANDARDIZE YT24 | The identified YT24 configuration covers the work and the fleet, air system and service plan are controlled. | Freeze the approved suffix/configuration and parts revision in the RFQ and PO. |
| STANDARDIZE YT28 | The YT28 configuration passes the application, loaded-air, interface and service checks. | Approve the exact drill/air-leg package and complete the transition plan before bulk release. |
| CONTROLLED MIXED FLEET | Both models have justified roles and the site can segregate or positively identify parts, procedures and air requirements. | Maintain a model-to-leg-to-steel-to-spares register and label service kits by revision. |
| HOLD FOR EVIDENCE | Suffix, air capacity, interface, trial result or parts equivalence remains unresolved. | Do not approve substitution or consolidate spares until the missing evidence is closed. |
Copy-Ready Fleet Transition Record
Record: site and heading; current model/suffix; proposed model/suffix; quantity; application envelope; compressor and distribution condition; maximum simultaneous drills; loaded tool-inlet pressure; drill-steel and bit interfaces; air-leg suffix; hose/coupling/lubricator setup; shared and unique spares; training differences; controlled-trial date/result; open deviations; final decision; approver and document revision.
10. What Should You Send in an RFQ for YT24 or YT28?
A technically useful RFQ should contain enough information to prevent the supplier from guessing your configuration:
- current rock drill make, model, suffix, and nameplate photo;
- required model: YT24C, TY24, YT28, or “supplier to recommend”;
- hole diameter and typical depth;
- rock type or hardness description if known;
- drilling direction and underground/quarry application;
- H22 × 108 mm shank confirmation;
- rod length, taper angle, and bit diameter;
- air-leg model and suffix;
- compressor make/model and rated pressure/flow;
- hose internal diameter and approximate hose length;
- number of simultaneous drills on the same air line;
- water supply / wet-drilling requirement;
- quantity, destination, required delivery date, and spare-parts requirement.
You can review the current YT24-Series and YT28 Air-Leg Rock Drill pages, then send the complete configuration through Request a Quote.
FAQ
Is YT28 more powerful than YT24?
YT28 is generally positioned as a higher-output air-leg drill than common TY24 references, but “YT24” is not one perfectly uniform specification. YT24C and TY24 published figures differ. Compare the exact units at the same pressure and use the controlled supplier data sheet before treating one model as a direct upgrade.
Does YT28 always consume more air than YT24?
No universal statement is safe. The official YT28 manual lists ≤55 L/s at 0.50 MPa and ≤81 L/s at 0.63 MPa. Published YT24-family figures vary by configuration and supplier. The decision should be based on exact suffix, pressure condition, and the airflow available at the tool inlet.
Can a YT24 compressor run a YT28?
Possibly, but the model name of the compressor is not enough. Confirm delivered flow at the required pressure, hose loss, simultaneous tool loads, and loaded pressure at the YT28 inlet. If the existing system was only marginal for a lower-demand YT24 configuration, YT28 performance can be limited by the air network.
Do YT24 and YT28 both use H22 × 108 mm drill steel?
The current PerfoMax YT24-family page and verified YT28 reference both support H22 × 108 mm-class shanks. However, full drill-string compatibility also requires the correct taper angle, rod length, bit diameter, and acceptable wear condition.
Should I replace YT24 with YT28 when drilling becomes slow?
Not before diagnosing the existing system. Slow drilling can be caused by low tool-inlet pressure, restricted hoses, poor lubrication, worn drill steel, dull bits, incorrect feed, water issues, or internal wear. A model change should follow a system check, not replace it.
Evidence and Safety Boundaries
- PerfoMax YT24-Series inquiry page — model-identification and configuration-control boundary.
- PerfoMax YT28 Air-Leg Rock Drill — current reference configuration and pressure-specific air data.
- OSHA 1926.302 — pneumatic-tool hose, coupling and pressure safety requirements.
- UK HSE HSG39 — compressed-air system safety and maintenance guidance.
Model-specific dimensions, performance limits and compatibility conclusions must come from the controlled data sheet and approved configuration attached to the quotation. Safety controls and local rules may be stricter than this guide.
Next Step: Match the Air System Before You Match the Model Number
The highest-cost mistake in a YT24-to-YT28 decision is treating the drill as an isolated machine. The rock drill, air leg, compressor, hose network, H22 × 108 mm drill steel, bit, water supply, and actual rock condition work as one system. If you are replacing a YT24-family unit or deciding between YT24 and YT28 for a new project, send PerfoMax the exact suffix, nameplate photos, hole plan, drill steel, air-leg suffix, compressor data, hose size, and simultaneous tool count. That gives the quotation a technical basis instead of relying on a family name.